fix(buttons): allow selection of undisabled button
fix(buttons): allow selection of undisabled button

- When a button has been toggled between disabled and not, fix allowing selection of the button to occur

Fixes #4088

dabos-GFI/angular-ui-bootstrap,codedogfish/angular-ui-bootstrap,cgat/bootstrap,rajesh-frontendengineer/bootstrap-1,connyay/bootstrap,SatvikPurohit/bootstrap,vsternbach/bootstrap,Emobe/bootstrap,MikhailNazarov/bootstrap,folsom-labs/bootstrap,mabi/bootstrap,tobigun/bootstrap,yubin-huang/bootstrap,pmalikbtech/bootstrap,davincho/bootstrap,dsisejkovic/bootstrap,GirishKumrawat/bootstrap,Farael49/bootstrap,kongx73/bootstrap,GirishKumrawat/bootstrap,reiniergs/bootstrap,wuwei111467/bootstrap,cesarmarinhorj/AngularJS-bootstrap,minzen/bootstrap,infowrap/bootstrap,buchslava/bootstrap,zepheiryan/bootstrap,wesleycho/bootstrap,caoruiy/bootstrap,gbasto/bootstrap,Zazulei/bootstrap,azahreba/bootstrap,carlosjunior/bootstrap,TORO-IO/bootstrap-1,freejavaster/bootstrap,cdrewery/bootstrap,Gailby/bootstrap,yjukaku/bootstrap,byronigoe/bootstrap,obivandamme/bootstrap,finkcloud/bootstrap,iamcbh/bootstrap,WXwangxin/bootstrap,eduncan26/bootstrap,fpipita/bootstrap,Servoy/bootstrap,alokpradhan/bootstrap,voyagecontrol/bootstrap,Lohann/bootstrap,matteopic/bootstrap,realityking/ui-bootstrap,stanzi83/bootstrap,xzoth/bootstrap,Lincoln-xzc/angular-ui-bootstrap,oliversalzburg/bootstrap,Jchavez/bootstrap-1,thomassorensen/bootstrap,Servoy/bootstrap,ksheedlo/bootstrap,qpitlove/bootstrap,linuxvom/bootstrap,josheche/bootstrap-1,succ1984/bootstrap,liiza/bootstrap,maoli1110/bootstrap,christor/bootstrap,burlhock/bootstrap,carlosjunior/bootstrap,inukshuk/bootstrap,dabos-GFI/angular-ui-bootstrap,gorork/bootstrap,fabg21/bootstrap,suryasingh/bootstrap,pkdevbox/angular-ui-bootstrap,xzoth/bootstrap,tmcgee123/bootstrap,Bugagazavr/bootstrap,mikesavior/bootstrap,mufl1h/bootstrap,pdsoftplan/bootstrap,jackRogers/bootstrap,christor/bootstrap,MetSystem/bootstrap,nobitagit/bootstrap,lancerushing/bootstrap,imskojs/bootstrap,parikmaher534/bootstrap,freejavaster/bootstrap,bikegriffith/bootstrap,mykhaylo-/bootstrap,noellejung/bootstrap,pireerliu/bootstrap,guaerguagua/bootstrap,hyoda/bootstrap,nicklv/bootstrap,sullivanpt/bootstrap,linuxvom/bootstrap,gato-gordo/bootstrap,nlwillia/bootstrap,nicklv/bootstrap,teng2015/bootstrap,martin-brennan-csnet/bootstrap,pdsoftplan/bootstrap,themifycloud/bootstrap,davereed/bootstrap,eduncan26/bootstrap,benhalverson/bootstrap,bikegriffith/bootstrap,drocbuster/My_AngularJS_Repo,kongx73/bootstrap,edivancamargo/bootstrap,SandeepSikhakolli/bootstrap,kmccaw/bootstrap,karelcallens/bootstrap,pkdevbox/angular-ui-bootstrap,gato-gordo/bootstrap,franzherzog/bootstrap,justin-john/bootstrap-1,cdrewery/bootstrap,SystemDisc/bootstrap,sullivanpt/bootstrap,woshiyigebing/bootstrap,universsky/bootstrap-1,buchslava/bootstrap,Xephi/bootstrap,obivandamme/bootstrap,MikhailNazarov/bootstrap,cgat/bootstrap,vfiles/bootstrap,deeg/bootstrap,filso/bootstrap,infowrap/bootstrap,universsky/bootstrap-1,franzherzog/bootstrap,SystemDisc/bootstrap,maoli1110/bootstrap,jaydiablo/bootstrap,rasulnz/bootstrap,thomassorensen/bootstrap,pkdevbox/bootstrap-1,davereed/bootstrap,rasulnz/bootstrap,Kpler/bootstrap,ehteshamkafeel/bootstrap,cesarmarinhorj/AngularJS-bootstrap,JonathanGawrych/bootstrap,Kpler/bootstrap,jordangraft/bootstrap,fmccown/bootstrap,yjukaku/bootstrap,JDeuker/bootstrap,fernando-sendMail/bootstrap,elijah513/bootstrap,edivancamargo/bootstrap,fjg1989/bootstrap,WXwangxin/bootstrap,elijah513/bootstrap,yukisan/bootstrap,RobJacobs/bootstrap,finkcloud/bootstrap,oliversalzburg/bootstrap,gorork/bootstrap,parikmaher534/bootstrap,SandeepSikhakolli/bootstrap,deeg/bootstrap,SatvikPurohit/bootstrap,imskojs/bootstrap,Vreasy/bootstrap,Anirudhk94/bootstrap,teng2015/bootstrap,themifycloud/bootstrap,thalen/bootstrap,pmalikbtech/bootstrap,Lohann/bootstrap,mykhaylo-/bootstrap,yubin-huang/bootstrap,2363140194/bootstrap,connyay/bootstrap,RobJacobs/bootstrap,stanzi83/bootstrap,Nekle/bootstrap,yonglehou/bootstrap-1,Den-dp/bootstrap,Foxandxss/bootstrap,benhalverson/bootstrap,wuwei111467/bootstrap,292388900/bootstrap,DenisCloutier/bootstrap,andrepitombeira/bootstrap,MetSystem/bootstrap,SimilarWeb/bootstrap,nlwillia/bootstrap,mikesavior/bootstrap,Jchavez/bootstrap-1,qpitlove/bootstrap,justin-john/bootstrap-1,JonFerrera/ui-bootstrap,Den-dp/bootstrap,krossoverintelligence/bootstrap,Vreasy/bootstrap,Foxandxss/bootstrap,DiHuang1986/bootstrap,SimilarWeb/bootstrap,linuxb/bootstrap,elancom/bootstrap-1,krossoverintelligence/bootstrap,davious/angular-ui-bootstrap,karelcallens/bootstrap,matteopic/bootstrap,wuhoujun/bootstrap,KingMario/bootstrap-1,vsternbach/bootstrap,icfantv/bootstrap,gbasto/bootstrap,inoxis91/bootstrap,angular-ui/bootstrap,daviesgeek/bootstrap,Gailby/bootstrap,Schibum/bootstrap,2363140194/bootstrap,birdy-/bootstrap,zhaokunfay/bootstrap,daviesgeek/bootstrap,folsom-labs/bootstrap,KingMario/bootstrap-1,cgvarela/bootstrap-1,davincho/bootstrap,ksheedlo/bootstrap,byronigoe/bootstrap,jackRogers/bootstrap,drocbuster/My_AngularJS_Repo,Lincoln-xzc/angular-ui-bootstrap,atulc007/bootstrap-1,guaerguagua/bootstrap,josheche/bootstrap-1,DiHuang1986/bootstrap,voyagecontrol/bootstrap,woshiyigebing/bootstrap,azahreba/bootstrap,liqingzhu/bootstrap,kmccaw/bootstrap,suryasingh/bootstrap,pireerliu/bootstrap,Crunch-io/bootstrap,leyanlo/bootstrap,JDeuker/bootstrap,rgolea/bootstrap,BookingBug/bootstrap,martin-brennan-csnet/bootstrap,cgvarela/bootstrap-1,dmc2015/bootstrap,succ1984/bootstrap,rajesh-frontendengineer/bootstrap-1,looker/bootstrap,benhalverson/bootstrap,spadgett/bootstrap,mufl1h/bootstrap,rhamid/bootstrap-1,Zazulei/bootstrap,ehteshamkafeel/bootstrap,Xephi/bootstrap,liiza/bootstrap,dsisejkovic/bootstrap,linuxb/bootstrap,fpipita/bootstrap,dmc2015/bootstrap,nathan-j-brenner/bootstrap-1,292388900/bootstrap,stereocilia/bootstrap,guaido79/bootstrap,hyoda/bootstrap,Nekle/bootstrap,inukshuk/bootstrap,bsiddiqui/bootstrap,angular-ui/bootstrap,thalen/bootstrap,burlhock/bootstrap,TORO-IO/bootstrap-1,zepheiryan/bootstrap,eftakharali/bootstrap,rodrigues-daniel/bootstrap,zhaokunfay/bootstrap,noellejung/bootstrap,lancerushing/bootstrap,inoxis91/bootstrap,ahsanbagwan/bootstrap,wuhoujun/bootstrap,alokpradhan/bootstrap,kirning/bootstrap-1,vfiles/bootstrap,mabi/bootstrap,BookingBug/bootstrap,wesleycho/bootstrap,shadowdaw/bootstrap,shootermv/bootstrap,liqingzhu/bootstrap,ChinnasamyM/bootstrap,icfantv/bootstrap,fjg1989/bootstrap,benhalverson/bootstrap,madhudskumar/bootstrap,kemapak/bootstrap,Schibum/bootstrap,JonathanGawrych/bootstrap,iamcbh/bootstrap,eftakharali/bootstrap,Emobe/bootstrap,pkdevbox/bootstrap-1,elancom/bootstrap-1,ChinnasamyM/bootstrap,JonFerrera/ui-bootstrap,fernando-sendMail/bootstrap,andrepitombeira/bootstrap,Crunch-io/bootstrap,minzen/bootstrap,shihang0001/bootstrap,stereocilia/bootstrap,Bugagazavr/bootstrap,DenisCloutier/bootstrap,rgolea/bootstrap,tobigun/bootstrap,yukisan/bootstrap,rodrigues-daniel/bootstrap,shadowdaw/bootstrap,shihang0001/bootstrap,ahsanbagwan/bootstrap,jordangraft/bootstrap,davious/angular-ui-bootstrap,nobitagit/bootstrap,kirning/bootstrap-1,yonglehou/bootstrap-1,shiftagent/ui-bootstrap,reiniergs/bootstrap,filso/bootstrap,gfaceless/bootstrap,kemapak/bootstrap,realityking/ui-bootstrap,Farael49/bootstrap,guaido79/bootstrap,fabg21/bootstrap,birdy-/bootstrap,jaydiablo/bootstrap,Anirudhk94/bootstrap,shiftagent/ui-bootstrap,gfaceless/bootstrap,looker/bootstrap,rhamid/bootstrap-1,caoruiy/bootstrap,leyanlo/bootstrap,spadgett/bootstrap,atulc007/bootstrap-1,nathan-j-brenner/bootstrap-1,tmcgee123/bootstrap,miiihi/bootstrap,bsiddiqui/bootstrap,codedogfish/angular-ui-bootstrap,madhudskumar/bootstrap,miiihi/bootstrap,fmccown/bootstrap,shootermv/bootstrap