Fixed a few issues with the recent UndoManager unit test changes.
Fixed a few issues with the recent UndoManager unit test changes.

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