Modified nsHTMLEditRules::WillDeleteSelection() so that it uses
an nsAutoTxnsConserveSelection auto-variable to prevent the
call to nsWSRunObject::PrepareToDeleteRange() from changing
the selection.
r=brade@netscape.comsr=waterson@netscape.com
git-svn-id: svn://10.0.0.236/trunk@99516 18797224-902f-48f8-a5cc-f745e15eee43