tdf#153857 Writer hangs right-clicking on form field

regression from
    commit 5032262fcc
    Author: Noel Grandin <noel.grandin@collabora.co.uk>
    Date:   Tue Feb 21 15:05:37 2023 +0200
    BaseMutex->std::mutex in PopupMenuControllerBase

Change-Id: I01bdab09ac0ce1d9b35ed45ad36d1c5179702c6c
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/147920
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

framework/source/uielement/controlmenucontroller.cxx

@@ -302,8 +302,10 @@ void SAL_CALL ControlMenuController::updatePopupMenu()
         Reference< XDispatch > xDispatch = xDispatchProvider->queryDispatch( aTargetURL, OUString(), 0 );
         if ( xDispatch.is() )
         {
+            aLock.unlock(); // the addStatusListener will call back into ::statusChanged
             xDispatch->addStatusListener( static_cast< XStatusListener* >(this), aTargetURL );
             xDispatch->removeStatusListener( static_cast< XStatusListener* >(this), aTargetURL );
+            aLock.lock();
             m_aURLToDispatchMap.emplace( aTargetURL.Complete, xDispatch );
         }
     }