Don't break all Ads when one is position-fixed
Don't break all Ads when one is position-fixed

If an ad fails the not position-fixed assertion, we will have incremented to total loading ads without ever decrementing. That'd cause mayhem for any other ads that haven't loaded yet that aren't breaking the rules.
sebastianbenz/amphtml,tdrl/amphtml,avimehta/amphtml,Adtoma/amphtml,taboola/amphtml,adtechnology/amphtml,criteo-forks/amphtml,jdelhommeau/amphtml,ruturajv-media-net/amphtml,zhouyx/amphtml,arealit/amphtml,shawnbuso/amphtml,adiant/amphtml,shawnbuso/amphtml,ecoron/amphtml,keithwrightbos/amphtml,ericlindley-g/amphtml,triplelift/amphtml,BenDz/amphtml-atinternet,gumgum/amphtml,zhouyx/amphtml,DistroScale/amphtml,kmh287/amphtml,rajkumarsrk/amphtml,rsimha-amp/amphtml,cvializ/amphtml,vmarteev/amphtml,interspacejp/amphtml,interspacejp/amphtml,alanorozco/amphtml,rsimha-amp/amphtml,pedjoni8/amphtml,techhtml/amphtml,mlb7687/amphtml,donttrustthisbot/amphtml,Adtoma/amphtml,camelburrito/amphtml,keithwrightbos/amphtml,luciancrasovan/amphtml,amoad-amoe/amphtml,chaveznvg/amphtml,Mobusi-ads/amphtml,honeybadgerdontcare/amphtml,jasti/amphtml,jpettitt/amphtml,sharethrough/amphtml,mkhatib/amphtml,jpettitt/amphtml,yieldmo/amphtml,wjfang/amphtml,galeksic/amphtml,chaveznvg/amphtml,yandex-pcode/amphtml,smartadserver/amphtml,bpaduch/amphtml,taboola/amphtml,techhtml/amphtml,Mixpo/amphtml,gumgum/amphtml,JuliusThms/amphtml,tlong2/amphtml,sortable/amphtml,rlugojr/amphtml,AaronCritchley/amphtml,avimehta/amphtml,zhucl/amphtml,prateekbh/amphtml,fullspeed-sp/amphtml,media-net/amphtml,ecoron/amphtml,ecoron/amphtml,honeybadgerdontcare/amphtml,ericlindley-g/amphtml,criteo-forks/amphtml,lannka/amphtml,alanorozco/amphtml,rifler/amphtml,danielrozenberg/amphtml,engtat/amphtml,arealit/amphtml,cvializ/amphtml,prateekbh/amphtml,sharethrough/amphtml,rajkumarsrk/amphtml,taboola/amphtml,adtechnology/amphtml,BenDz/amphtml,kmh287/amphtml,ampproject/amphtml,JuliusThms/amphtml,lannka/amphtml,adiant/amphtml,BrightcoveOS/amphtml,chaveznvg/amphtml,fullspeed-sp/amphtml,engtat/amphtml,mhc-gh/amphtml,erwinmombay/amphtml,dvoytenko/amphtml,lzanol/amphtml,triplelift/amphtml,criteo-forks/amphtml,chaveznvg/amphtml,devjsun/amphtml,mkhatib/amphtml,comScore/amphtml,yieldbot/amphtml,gumgum/amphtml,spotxchange/amphtml,DistroScale/amphtml,aghassemi/amphtml,Gregable/amphtml,triplelift/amphtml,tdrl/amphtml,Gregable/amphtml,sklobovskaya/amphtml,engtat/amphtml,pietergreyling/amphtml,jpettitt/amphtml,taboola/amphtml,dvoytenko/amphtml,smartadserver/amphtml,tlong2/amphtml,jpettitt/amphtml,avimehta/amphtml,media-net/amphtml,aghassemi/amphtml,AaronCritchley/amphtml,yandex-pcode/amphtml,bpaduch/amphtml,powdercloud/amphtml,mhc-gh/amphtml,adup-tech/amphtml,danielrozenberg/amphtml,dvoytenko/amphtml,galeksic/amphtml,ruturajv-media-net/amphtml,BenDz/amphtml-atinternet,pietergreyling/amphtml,sklobovskaya/amphtml,zhangsu/amphtml,AaronCritchley/amphtml,jasti/amphtml,luciancrasovan/amphtml,comScore/amphtml,rifler/amphtml,rsimha-amp/amphtml,lannka/amphtml,adtechnology/amphtml,cory-work/amphtml,shawnbuso/amphtml,jasti/amphtml,gumgum/amphtml,BenDz/amphtml,mhc-gh/amphtml,wjfang/amphtml,koshka/amphtml,cvializ/amphtml,jdelhommeau/amphtml,lannka/amphtml,Mobusi-ads/amphtml,jmadler/amphtml,tdrl/amphtml,comScore/amphtml,prateekbh/amphtml,vmarteev/amphtml,jridgewell/amphtml,jasti/amphtml,powdercloud/amphtml,aghassemi/amphtml,sriramkrish85/amphtml,erwinmombay/amphtml,DAC-f1h-dev/amphtml,wjfang/amphtml,luciancrasovan/amphtml,JuliusThms/amphtml,bpaduch/amphtml,donttrustthisbot/amphtml,jasti/amphtml,honeybadgerdontcare/amphtml,camelburrito/amphtml,zhucl/amphtml,interspacejp/amphtml,triplelift/amphtml,cory-work/amphtml,DAC-f1h-dev/amphtml,shawnbuso/amphtml,adtechnology/amphtml,tlong2/amphtml,pedjoni8/amphtml,dvoytenko/amphtml,wjfang/amphtml,clawr/amphtml,galeksic/amphtml,prateekbh/amphtml,cvializ/amphtml,voyagegroup/amphtml,lannka/amphtml,kamtschatka/amphtml,sriramkrish85/amphtml,camelburrito/amphtml,chaveznvg/amphtml,Mixpo/amphtml,DistroScale/amphtml,kmh287/amphtml,spotxchange/amphtml,camelburrito/amphtml,techhtml/amphtml,Gregable/amphtml,clawr/amphtml,clawr/amphtml,adup-tech/amphtml,media-net/amphtml,rajkumarsrk/amphtml,bpaduch/amphtml,jmadler/amphtml,media-net/amphtml,dotandads/amphtml,prateekbh/amphtml,widespace-os/amphtml,sharethrough/amphtml,ruturajv-media-net/amphtml,gumgum/amphtml,jlucero-contentad/amphtml,media-net/amphtml,adiant/amphtml,yieldmo/amphtml,voyagegroup/amphtml,britice/amphtml,zhouyx/amphtml,taboola/amphtml,mlb7687/amphtml,jlucero-contentad/amphtml,mlb7687/amphtml,fullspeed-sp/amphtml,cvializ/amphtml,dotandads/amphtml,luciancrasovan/amphtml,clawr/amphtml,smartadserver/amphtml,dotandads/amphtml,jridgewell/amphtml,triplelift/amphtml,powdercloud/amphtml,alanorozco/amphtml,prateekbh/amphtml,comScore/amphtml,keithwrightbos/amphtml,galeksic/amphtml,koshka/amphtml,alanorozco/amphtml,zhouyx/amphtml,zhucl/amphtml,sriramkrish85/amphtml,britice/amphtml,adup-tech/amphtml,sklobovskaya/amphtml,arealit/amphtml,kixer-com/amphtml,avimehta/amphtml,laterpay/amphtml,kmh287/amphtml,yandex-pcode/amphtml,sortable/amphtml,sriramkrish85/amphtml,taboola/amphtml,adiant/amphtml,powdercloud/amphtml,ADITION/amphtml,keithwrightbos/amphtml,dotandads/amphtml,voyagegroup/amphtml,lzanol/amphtml,shawnbuso/amphtml,honeybadgerdontcare/amphtml,alanorozco/amphtml,BenDz/amphtml-atinternet,JuliusThms/amphtml,jridgewell/amphtml,lannka/amphtml,danielrozenberg/amphtml,sortable/amphtml,erwinmombay/amphtml,lzanol/amphtml,pietergreyling/amphtml,zhouyx/amphtml,kixer-com/amphtml,sklobovskaya/amphtml,sharethrough/amphtml,wjfang/amphtml,adup-tech/amphtml,ericlindley-g/amphtml,dvoytenko/amphtml,erwinmombay/amphtml,yevheniiminin/amphtml,clawr/amphtml,zhucl/amphtml,jridgewell/amphtml,luciancrasovan/amphtml,ampproject/amphtml,yieldbot/amphtml,jdelhommeau/amphtml,nexxtv/amphtml,rifler/amphtml,nexxtv/amphtml,ericlindley-g/amphtml,jmadler/amphtml,cory-work/amphtml,shawnbuso/amphtml,keithwrightbos/amphtml,adiant/amphtml,mlb7687/amphtml,Lith/amphtml,shawnbuso/amphtml,danielrozenberg/amphtml,pietergreyling/amphtml,sebastianbenz/amphtml,sebastianbenz/amphtml,donttrustthisbot/amphtml,vmarteev/amphtml,src-code/amphtml,adtechnology/amphtml,clawr/amphtml,rlugojr/amphtml,lannka/amphtml,devjsun/amphtml,Mixpo/amphtml,yevheniiminin/amphtml,vmarteev/amphtml,ampproject/amphtml,sortable/amphtml,erwinmombay/amphtml,mhc-gh/amphtml,camelburrito/amphtml,BenDz/amphtml,laterpay/amphtml,JuliusThms/amphtml,luciancrasovan/amphtml,adiant/amphtml,AaronCritchley/amphtml,laterpay/amphtml,laterpay/amphtml,danielrozenberg/amphtml,ampproject/amphtml,ADITION/amphtml,sklobovskaya/amphtml,rajkumarsrk/amphtml,smartadserver/amphtml,BrightcoveOS/amphtml,sriramkrish85/amphtml,sharethrough/amphtml,criteo-forks/amphtml,honeybadgerdontcare/amphtml,jasti/amphtml,avimehta/amphtml,amoad-amoe/amphtml,yevheniiminin/amphtml,src-code/amphtml,Adtoma/amphtml,yieldbot/amphtml,fullspeed-sp/amphtml,interspacejp/amphtml,Mobusi-ads/amphtml,rsimha-amp/amphtml,Mixpo/amphtml,arealit/amphtml,widespace-os/amphtml,sklobovskaya/amphtml,gumgum/amphtml,bpaduch/amphtml,Mixpo/amphtml,mkhatib/amphtml,BrightcoveOS/amphtml,yieldmo/amphtml,DarXector/amphtml,criteo-forks/amphtml,src-code/amphtml,techhtml/amphtml,britice/amphtml,comScore/amphtml,yieldmo/amphtml,voyagegroup/amphtml,dotandads/amphtml,arealit/amphtml,jmadler/amphtml,tlong2/amphtml,amoad-amoe/amphtml,pedjoni8/amphtml,mhc-gh/amphtml,BenDz/amphtml,jlucero-contentad/amphtml,devjsun/amphtml,arealit/amphtml,yieldmo/amphtml,avimehta/amphtml,jdelhommeau/amphtml,DistroScale/amphtml,zhucl/amphtml,burtcorp/amphtml,Lith/amphtml,pedjoni8/amphtml,powdercloud/amphtml,sriramkrish85/amphtml,devjsun/amphtml,Lith/amphtml,rajkumarsrk/amphtml,jdelhommeau/amphtml,aghassemi/amphtml,nexxtv/amphtml,media-net/amphtml,galeksic/amphtml,ampproject/amphtml,mkhatib/amphtml,smartadserver/amphtml,nexxtv/amphtml,jlucero-contentad/amphtml,jridgewell/amphtml,fullspeed-sp/amphtml,kamtschatka/amphtml,wjfang/amphtml,BrightcoveOS/amphtml,mkhatib/amphtml,ampproject/amphtml,spotxchange/amphtml,rifler/amphtml,jridgewell/amphtml,sortable/amphtml,kamtschatka/amphtml,pedjoni8/amphtml,sharethrough/amphtml,koshka/amphtml,adtechnology/amphtml,Gregable/amphtml,amoad-amoe/amphtml,burtcorp/amphtml,donttrustthisbot/amphtml,ADITION/amphtml,yevheniiminin/amphtml,kixer-com/amphtml,spotxchange/amphtml,erwinmombay/amphtml,taboola/amphtml,zhangsu/amphtml,Gregable/amphtml,DAC-f1h-dev/amphtml,keithwrightbos/amphtml,Mobusi-ads/amphtml,DistroScale/amphtml,wjfang/amphtml,rifler/amphtml,sklobovskaya/amphtml,techhtml/amphtml,jdelhommeau/amphtml,src-code/amphtml,DarXector/amphtml,bpaduch/amphtml,JuliusThms/amphtml,comScore/amphtml,alanorozco/amphtml,ruturajv-media-net/amphtml,kmh287/amphtml,tlong2/amphtml,donttrustthisbot/amphtml,BenDz/amphtml,vmarteev/amphtml,prateekbh/amphtml,pietergreyling/amphtml,yevheniiminin/amphtml,ADITION/amphtml,spotxchange/amphtml,britice/amphtml,mkhatib/amphtml,jpettitt/amphtml,yandex-pcode/amphtml,camelburrito/amphtml,honeybadgerdontcare/amphtml,lzanol/amphtml,smartadserver/amphtml,danielrozenberg/amphtml,mhc-gh/amphtml,chaveznvg/amphtml,jlucero-contentad/amphtml,zhucl/amphtml,DarXector/amphtml,spotxchange/amphtml,koshka/amphtml,yieldbot/amphtml,Lith/amphtml,engtat/amphtml,voyagegroup/amphtml,yieldbot/amphtml,rlugojr/amphtml,Gregable/amphtml,cory-work/amphtml,voyagegroup/amphtml,adup-tech/amphtml,zhangsu/amphtml,yieldmo/amphtml,rsimha-amp/amphtml,pietergreyling/amphtml,sebastianbenz/amphtml,DAC-f1h-dev/amphtml,honeybadgerdontcare/amphtml,jmadler/amphtml,mlb7687/amphtml,rajkumarsrk/amphtml,danielrozenberg/amphtml,cory-work/amphtml,triplelift/amphtml,widespace-os/amphtml,engtat/amphtml,ruturajv-media-net/amphtml,gumgum/amphtml,sortable/amphtml,zhouyx/amphtml,rlugojr/amphtml,nexxtv/amphtml,devjsun/amphtml,rajkumarsrk/amphtml,DAC-f1h-dev/amphtml,ecoron/amphtml,yevheniiminin/amphtml,media-net/amphtml,rsimha-amp/amphtml,adiant/amphtml,zhouyx/amphtml,burtcorp/amphtml,BenDz/amphtml,AaronCritchley/amphtml,kixer-com/amphtml,rlugojr/amphtml,koshka/amphtml,BrightcoveOS/amphtml,DarXector/amphtml,widespace-os/amphtml,Gregable/amphtml,sebastianbenz/amphtml,zhangsu/amphtml,cory-work/amphtml,engtat/amphtml,jridgewell/amphtml,DarXector/amphtml,tdrl/amphtml,ampproject/amphtml,tdrl/amphtml,aghassemi/amphtml,dotandads/amphtml,widespace-os/amphtml,alanorozco/amphtml,DistroScale/amphtml,devjsun/amphtml,src-code/amphtml,burtcorp/amphtml,Mobusi-ads/amphtml,dvoytenko/amphtml,yandex-pcode/amphtml,keithwrightbos/amphtml,arealit/amphtml,techhtml/amphtml,Lith/amphtml,ADITION/amphtml,mhc-gh/amphtml,lzanol/amphtml,rlugojr/amphtml,zhucl/amphtml,fullspeed-sp/amphtml,lzanol/amphtml,AaronCritchley/amphtml,Mobusi-ads/amphtml,amoad-amoe/amphtml,tlong2/amphtml,widespace-os/amphtml,jpettitt/amphtml,Adtoma/amphtml,donttrustthisbot/amphtml,kmh287/amphtml,vmarteev/amphtml,amoad-amoe/amphtml,camelburrito/amphtml,sebastianbenz/amphtml,Gregable/amphtml,kamtschatka/amphtml,yieldbot/amphtml,kixer-com/amphtml,Lith/amphtml,zhangsu/amphtml,clawr/amphtml,vmarteev/amphtml,laterpay/amphtml,jmadler/amphtml,laterpay/amphtml,jlucero-contentad/amphtml,jpettitt/amphtml,tdrl/amphtml,ericlindley-g/amphtml,bpaduch/amphtml,zhangsu/amphtml,src-code/amphtml,kamtschatka/amphtml,ericlindley-g/amphtml,cvializ/amphtml,kixer-com/amphtml,nexxtv/amphtml,koshka/amphtml,alanorozco/amphtml,yandex-pcode/amphtml,kamtschatka/amphtml,luciancrasovan/amphtml,interspacejp/amphtml,ruturajv-media-net/amphtml,mlb7687/amphtml,criteo-forks/amphtml,adup-tech/amphtml,nexxtv/amphtml,kixer-com/amphtml,DarXector/amphtml,burtcorp/amphtml,aghassemi/amphtml,media-net/amphtml,powdercloud/amphtml,Adtoma/amphtml,jpettitt/amphtml,engtat/amphtml,ecoron/amphtml,rsimha-amp/amphtml,comScore/amphtml,rifler/amphtml,voyagegroup/amphtml,danielrozenberg/amphtml,Mixpo/amphtml,Adtoma/amphtml,DAC-f1h-dev/amphtml,yandex-pcode/amphtml,ampproject/amphtml,donttrustthisbot/amphtml,burtcorp/amphtml,interspacejp/amphtml,cory-work/amphtml,ecoron/amphtml,mhc-gh/amphtml,BrightcoveOS/amphtml,powdercloud/amphtml,pedjoni8/amphtml,yieldmo/amphtml