dont hide windows when switching to the current workspace

src/client.cc

@@ -655,6 +655,8 @@ void OBClient::setWMState(long state)
 
 void OBClient::setDesktop(long target)
 {
+  if (target == _desktop) return;
+  
   printf("Setting desktop %ld\n", target);
   assert(target >= 0 || target == (signed)0xffffffff);
   //assert(target == 0xffffffff || target < MAX);

src/screen.cc

@@ -648,6 +648,8 @@ void OBScreen::changeDesktop(long desktop)
                                      otk::OBProperty::Atom_Cardinal,
                                      _desktop);
 
+  if (old == _desktop) return;
+  
   OBClient::List::iterator it, end = clients.end();
   for (it = clients.begin(); it != end; ++it) {
     if ((*it)->desktop() == old) {