In HeaderFooterWin.cxx's SwHeaderFooterWin::ExecuteCommand(): after changes are made to the header's background, box, or shadow, I call SetModified(true) to signal that the document was modified. Change-Id: I2be5710dde9d7a6f5d4373484d52ece71c91cdd4 Reviewed-on: https://gerrit.libreoffice.org/2654 Reviewed-by: Fridrich Strba <fridrich@documentfoundation.org> Tested-by: Fridrich Strba <fridrich@documentfoundation.org>