Hotkey editor: prevent closing on Enter release

common/widgets/widget_hotkey_list.cpp

@@ -198,10 +198,14 @@ protected:
     }
 
     void OnKeyUp( wxKeyEvent& aEvent )
+    {
+        // If dialog opened using Enter key, prevent closing when releasing Enter.
+        if( m_event.GetEventType() != wxEVT_NULL )
         {
             /// This needs to occur in KeyUp, so that we don't pass the event back to pcbnew
             wxPostEvent( this, wxCommandEvent( wxEVT_COMMAND_BUTTON_CLICKED, wxID_OK ) );
         }
+    }
 
 private:
     wxKeyEvent m_event;