Temporary fix: redisplay the button when the selected item is changed.

git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@5045 72102866-910b-0410-8b05-ffd578937521

Source/NSPopUpButton.m

@@ -211,6 +211,8 @@
 
 - (void)selectItemAtIndex:(int)index
 {
+  if (popb_selectedItem != index)
+    {
       if (index == -1)
 	{
 	  popb_selectedItem = -1;
@@ -219,8 +221,12 @@
 	{
 	  popb_selectedItem = index;
 	}
-
-  [self synchronizeTitleAndSelectedItem];
+      // This works fine
+      [self setNeedsDisplay: YES];
+      // but replace it with the following
+      //  [self synchronizeTitleAndSelectedItem];
+      // as soon as it works.
+    }
 }
 
 - (void)selectItemWithTitle:(NSString *)title