CVS commit by lunakl: 

Make only left mouse on window borders move/resize windows.
BUG: 83378


  M +2 -1      events.cpp   1.85


--- kdebase/kwin/events.cpp  #1.84:1.85
@@ -1236,5 +1236,6 @@ void Client::processDecorationButtonPres
     else if ( button == Button3 )
         com = active ? options->commandActiveTitlebar3() : options->commandInactiveTitlebar3();
-    if( com != Options::MouseOperationsMenu // actions where it's not possible to get the matching
+    if( button == Button1
+        && com != Options::MouseOperationsMenu // actions where it's not possible to get the matching
         && com != Options::MouseMinimize )  // mouse release event
         {