Fixed previous commit so it doesn't break buttons in the tableview.

AppKit/CPTableView.j

@@ -2154,10 +2154,12 @@ CPTableViewFirstColumnOnlyAutoresizingStyle = 5;
     }
 }
 
-- (void)_commitDataViewObjectValue:(CPTextView)sender
+- (void)_commitDataViewObjectValue:(id)sender
 {
     [_dataSource tableView:self setObjectValue:[sender objectValue] forTableColumn:sender.tableViewEditedColumnObj row:sender.tableViewEditedRowIndex];
-    [sender setEditable:NO];
+
+    if ([sender respondsToSelector:@selector(setEditable:)])
+        [sender setEditable:NO];
 }
 
 - (CPView)_newDataViewForRow:(CPInteger)aRow tableColumn:(CPTableColumn)aTableColumn