lok: avoid duplicate notification of tab-stop and ruler changes.

We get far too many of these, one per key-stroke sometimes.

Change-Id: Ifecffe0a82c6eef6809e3a49883bb3f17cb4d170
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/128535
Tested-by: Jenkins
Reviewed-by: Michael Meeks <michael.meeks@collabora.com>

desktop/source/lib/init.cxx

@@ -1484,6 +1484,8 @@ CallbackFlushHandler::CallbackFlushHandler(LibreOfficeKitDocument* pDocument, Li
     m_states.emplace(LOK_CALLBACK_CURSOR_VISIBLE, "NIL");
     m_states.emplace(LOK_CALLBACK_SET_PART, "NIL");
     m_states.emplace(LOK_CALLBACK_TABLE_SELECTED, "NIL");
+    m_states.emplace(LOK_CALLBACK_TAB_STOP_LIST, "NIL");
+    m_states.emplace(LOK_CALLBACK_RULER_UPDATE, "NIL");
 }
 
 CallbackFlushHandler::~CallbackFlushHandler()