tdf#71435: Accessible caret-moved events are missing when "freeze" is enabled

Two accessible document is created when "freeze" options is
enabled. meSplitPos identifies which accessible document handle
which part of the window. We should handle events only in that
accessible document which handles the active part.

Change-Id: Ic9674344951f620546dd272beaad796de611d258
Reviewed-on: https://gerrit.libreoffice.org/32065
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Tamás Zolnai <tamas.zolnai@collabora.com>
(cherry picked from commit 06ea887f8ba34a628d7641eab210501f7bd2493d)
Reviewed-on: https://gerrit.libreoffice.org/32077
Tested-by: Tamás Zolnai <tamas.zolnai@collabora.com>
diff --git a/sc/source/ui/Accessibility/AccessibleDocument.cxx b/sc/source/ui/Accessibility/AccessibleDocument.cxx
index f919af43..79b1a48 100644
--- a/sc/source/ui/Accessibility/AccessibleDocument.cxx
+++ b/sc/source/ui/Accessibility/AccessibleDocument.cxx
@@ -1581,7 +1581,7 @@ void ScAccessibleDocument::Notify( SfxBroadcaster& rBC, const SfxHint& rHint )
        }
        else if ((rHint.GetId() == SC_HINT_ACC_ENTEREDITMODE)) // this event comes only on creating edit field of a cell
        {
            if (mpViewShell->GetViewData().HasEditView(meSplitPos))
            if (mpViewShell->GetViewData().GetEditActivePart() == meSplitPos)
            {
                ScViewData& rViewData = mpViewShell->GetViewData();
                const EditEngine* pEditEng = rViewData.GetEditView(meSplitPos)->GetEditEngine();