Resolves: rhbz#1353069 don't clear XATTR_FILL* from stylesheet if...

the master page is not the sole owner. Which happens when copying
and pasting slides which bring along a duplicate master page to
an already existing one, and the attempt to remove the duplicate
strips the fill properties from the shared stylesheet in use by
the other

regression from...

commit b876bbe2cacce8af379b10d82da6c7e7d229b361
Author: David Tardon <dtardon@redhat.com>
Date:   Tue Apr 26 09:17:11 2016 +0200

    rbhz#1326602 avoid exp. bg bitmaps from deleted slides

Change-Id: I91fb8f622a0e35741ecc37cef14fc93199bb730b

1 files changed, 11 insertions, 2 deletions

diff --git a/sd/source/core/drawdoc3.cxx b/sd/source/core/drawdoc3.cxx
index cf01895789ae..d857b380e238 100644
--- a/sd/source/core/drawdoc3.cxx
+++ b/sd/source/core/drawdoc3.cxx
@@ -792,8 +792,17 @@ bool SdDrawDocument::InsertBookmarkAsPage(
                  aTest == aMPLayout &&
                  eKind == pTest->GetPageKind() )
             {
-                if( bUndo )
-                    AddUndo(GetSdrUndoFactory().CreateUndoDeletePage(*pRefPage));
+                if (bUndo)
+                {
+                    bool bSoleOwnerOfStyleSheet = true;
+                    if (pRefPage->IsMasterPage())
+                    {
+                        const SfxStyleSheet* pRefSheet = pRefPage->getSdrPageProperties().GetStyleSheet();
+                        const SfxStyleSheet* pTestSheet = pTest->getSdrPageProperties().GetStyleSheet();
+                        bSoleOwnerOfStyleSheet = pRefSheet != pTestSheet;
+                    }
+                    AddUndo(GetSdrUndoFactory().CreateUndoDeletePage(*pRefPage, bSoleOwnerOfStyleSheet));
+                }
 
                 RemoveMasterPage(nPage);