SwView::Replace() nowadays first searches for the to-be-replaced text in
the current selection, which does not work in the corner case of "$"
when the selection starts at end of a paragraph, as it will when
clicking "Find" to look for "$" and then clicking "Replace".

The problem is that there is some antique code in SwPaM::Find() to
move the cursor forward if it's at the end of a paragraph, which is
presumably some pointless micro-optimization; the result is that
"Replace" does not replace the selected paragraph break but the
one in the following paragraph.

(regression from 68a014dbca8bbd25056f75ef551fb81a0dbfb1b7)

Change-Id: I5aae9c272d102a48166c63e01775dc6322f9f02d