Fixes for selection of empty elements.
Fixes for selection of empty elements.

pmpl-5/tinymce,MediehusetTek/tinymce,fillabs/TinySpecMCE,TeamupCom/tinymce,howanghk/tinymce,FernCreek/tinymce,adaptiffdesigns/tinymce,M4R7iNP/tinymce,aduth/tinymce,danielpunkass/tinymce,enfold/tinymce,shilpi230/tinymce,ikuchmin/tinymce,toxalot/tinymce,cclaerhout/tinymce,nikolas/tinymce,Razzwan/tinymce,Kindling/tinymce,collective/tinymce,ChristophKaser/tinymce,rbecheras/tinymce,howanghk/tinymce,sachgits/tinymce,Zimbra/tinymce,jashua212/tinymce,adaptiffdesigns/tinymce,widgetfactory/tinymce,1099511627776/tinymce,1099511627776/tinymce,jtark/tinymce,tinymce/tinymce,rednose-public/tinymce,leofeyer/tinymce,kencheung/tinymce,dziemian007/tinymce,fhchina/tinymce,Shopify/tinymce,rbecheras/tinymce,mplank/tinymce,bsuh/tinymce,support-dot-com/tinymce,rxl194/tinymce,danchr/tinymce,kencheung/tinymce,aduth/tinymce,jtark/tinymce,VioletLife/tinymce,fashionsun/tinymce,ETSI-CTI/TinySpecMCE,FernCreek/tinymce,gencer/tinymce,FernCreek/tinymce,fhchina/tinymce,henrythewasp/tinymce,ChristophKaser/tinymce,rxl194/tinymce,nbcp/tinymce,MediehusetTek/tinymce,pmpl-5/tinymce,tinymce/tinymce,gabixdev/tinymce,henrythewasp/tinymce,toxalot/tinymce,shilpi230/tinymce,widgetfactory/tinymce,endjin/tinymce,VioletLife/tinymce,blakewallan/tinymce,enfold/tinymce,support-dot-com/tinymce,collective/tinymce,danchr/tinymce,nikolas/tinymce,simachewh/tinymce,Zimbra/tinymce,cclaerhout/tinymce,sjbufton/tinymce,M4R7iNP/tinymce,fashionsun/tinymce,leofeyer/tinymce,bsuh/tinymce,Razzwan/tinymce,Kindling/tinymce,rednose-public/tinymce,TeamupCom/tinymce,danielpunkass/tinymce,sjbufton/tinymce,endjin/tinymce,ikuchmin/tinymce,blakewallan/tinymce,ETSI-CTI/TinySpecMCE,gencer/tinymce,gabixdev/tinymce,danielpunkass/tinymce,simachewh/tinymce,sachgits/tinymce,dziemian007/tinymce,jashua212/tinymce,mplank/tinymce,fillabs/TinySpecMCE,ice8lue/tinymce,nbcp/tinymce,tinymce/tinymce,ice8lue/tinymce