Merging from old trunk:

r609071 | lunakl | 2006-11-29 14:25:38 +0100 (Wed, 29 Nov 2006) | 4 lines

+    // grab X during the release to make removing of properties, setting to withdrawn state
+    // and repareting to root an atomic operation (http://lists.kde.org/?l=kde-devel&m=116448102901184&w=2)


svn path=/trunk/KDE/kdebase/workspace/; revision=659470

client.cpp

@@ -192,6 +192,9 @@ void Client::releaseWindow( bool on_shutdown )
     ++block_geometry_updates;
     if( isOnCurrentDesktop() && isShown( true ))
         addWorkspaceRepaint( geometry());
+    // grab X during the release to make removing of properties, setting to withdrawn state
+    // and repareting to root an atomic operation (http://lists.kde.org/?l=kde-devel&m=116448102901184&w=2)
+    grabXServer();
     setMappingState( WithdrawnState );
     setModal( false ); // otherwise its mainwindow wouldn't get focus
     hidden = true; // so that it's not considered visible anymore (can't use hideClient(), it would set flags)
@@ -235,6 +238,7 @@ void Client::releaseWindow( bool on_shutdown )
     disownDataPassedToDeleted();
     del->unrefWindow();
     deleteClient( this, Allowed );
+    ungrabXServer();
     }
 
 // like releaseWindow(), but this one is called when the window has been already destroyed