Reviewed by Harrison

    Reviewed by Harrison

        Fix for this bug:

        <rdar://problem/3906948> REGRESSION (Mail): Insert paragraph code can make the insertion point "stick" in place.

        * khtml/editing/htmlediting.cpp:
        (khtml::InsertParagraphSeparatorCommand::doApply): Call insertBlockPlaceholderIfNeeded(), passing block
        being added to this function. This ensures that the added block has a height.
        (khtml::InsertParagraphSeparatorInQuotedContentCommand::doApply): Ditto.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@8126 268f45cc-cd09-0410-ab3c-d52691b4dbfc