Ban amp-state in Mustache template output (#25323)
Ban amp-state in Mustache template output (#25323)

This is for consistency with amp-list and amp-form: we don't allow
XHR-firing components to be nested under another XHR-firing template.
nexxtv/amphtml,jmadler/amphtml,dotandads/amphtml,Gregable/amphtml,tlong2/amphtml,dotandads/amphtml,cory-work/amphtml,media-net/amphtml,jridgewell/amphtml,jpettitt/amphtml,sharethrough/amphtml,honeybadgerdontcare/amphtml,media-net/amphtml,prateekbh/amphtml,src-code/amphtml,alanorozco/amphtml,cory-work/amphtml,src-code/amphtml,tlong2/amphtml,yandex-pcode/amphtml,cory-work/amphtml,prateekbh/amphtml,dotandads/amphtml,cory-work/amphtml,erwinmombay/amphtml,yandex-pcode/amphtml,Gregable/amphtml,taboola/amphtml,media-net/amphtml,mhc-gh/amphtml,jmadler/amphtml,smartadserver/amphtml,prateekbh/amphtml,media-net/amphtml,jmadler/amphtml,alanorozco/amphtml,Gregable/amphtml,media-net/amphtml,dotandads/amphtml,adup-tech/amphtml,src-code/amphtml,erwinmombay/amphtml,lannka/amphtml,rsimha-amp/amphtml,rsimha-amp/amphtml,prateekbh/amphtml,mhc-gh/amphtml,erwinmombay/amphtml,media-net/amphtml,voyagegroup/amphtml,dotandads/amphtml,rsimha-amp/amphtml,sharethrough/amphtml,jpettitt/amphtml,tlong2/amphtml,voyagegroup/amphtml,mhc-gh/amphtml,nexxtv/amphtml,voyagegroup/amphtml,smartadserver/amphtml,taboola/amphtml,lannka/amphtml,erwinmombay/amphtml,lannka/amphtml,danielrozenberg/amphtml,prateekbh/amphtml,sharethrough/amphtml,Gregable/amphtml,mhc-gh/amphtml,jridgewell/amphtml,src-code/amphtml,Gregable/amphtml,tlong2/amphtml,prateekbh/amphtml,yandex-pcode/amphtml,danielrozenberg/amphtml,alanorozco/amphtml,jpettitt/amphtml,alanorozco/amphtml,mhc-gh/amphtml,zhouyx/amphtml,yandex-pcode/amphtml,jridgewell/amphtml,honeybadgerdontcare/amphtml,sharethrough/amphtml,smartadserver/amphtml,dotandads/amphtml,src-code/amphtml,rsimha-amp/amphtml,jpettitt/amphtml,smartadserver/amphtml,voyagegroup/amphtml,smartadserver/amphtml,tlong2/amphtml,src-code/amphtml,Gregable/amphtml,jmadler/amphtml,taboola/amphtml,sharethrough/amphtml,alanorozco/amphtml,jpettitt/amphtml,rsimha-amp/amphtml,prateekbh/amphtml,ampproject/amphtml,lannka/amphtml,nexxtv/amphtml,taboola/amphtml,ampproject/amphtml,nexxtv/amphtml,zhouyx/amphtml,lannka/amphtml,tlong2/amphtml,smartadserver/amphtml,honeybadgerdontcare/amphtml,danielrozenberg/amphtml,nexxtv/amphtml,adup-tech/amphtml,zhouyx/amphtml,zhouyx/amphtml,jmadler/amphtml,yandex-pcode/amphtml,rsimha-amp/amphtml,zhouyx/amphtml,jridgewell/amphtml,honeybadgerdontcare/amphtml,lannka/amphtml,voyagegroup/amphtml,nexxtv/amphtml,media-net/amphtml,cory-work/amphtml,jridgewell/amphtml,danielrozenberg/amphtml,alanorozco/amphtml,voyagegroup/amphtml,ampproject/amphtml,jpettitt/amphtml,zhouyx/amphtml,jpettitt/amphtml,mhc-gh/amphtml,danielrozenberg/amphtml,jpettitt/amphtml,jridgewell/amphtml,lannka/amphtml,taboola/amphtml,cory-work/amphtml,taboola/amphtml,mhc-gh/amphtml,honeybadgerdontcare/amphtml,danielrozenberg/amphtml,yandex-pcode/amphtml,voyagegroup/amphtml,nexxtv/amphtml,rsimha-amp/amphtml,cory-work/amphtml,taboola/amphtml,ampproject/amphtml,mhc-gh/amphtml,ampproject/amphtml,honeybadgerdontcare/amphtml,alanorozco/amphtml,erwinmombay/amphtml,adup-tech/amphtml,ampproject/amphtml,danielrozenberg/amphtml,jmadler/amphtml,media-net/amphtml,honeybadgerdontcare/amphtml,adup-tech/amphtml,alanorozco/amphtml,adup-tech/amphtml,erwinmombay/amphtml,adup-tech/amphtml,Gregable/amphtml,ampproject/amphtml,sharethrough/amphtml,jridgewell/amphtml,zhouyx/amphtml,danielrozenberg/amphtml,yandex-pcode/amphtml,Gregable/amphtml,ampproject/amphtml