Comment 21 for bug 1235935

regression from:

commit 6b08fe833186a04f9aef698a540d3a7493ac4519
Author: Michael Stahl <email address hidden>
AuthorDate: Fri Feb 15 15:28:24 2013 +0100

    fdo#60732: check max size in SwTxtNode::ReplaceText

    Also adjust SwUndoReplace to not assume that everything was inserted and
    use the stored indexes instead in Undo.

... which changed SwUndoReplace::Impl::SetEnd to use the wrongly set
end position in rPam.