message: Fix a Python error when sending text only dialogs
diff: @@ -193,6 +193,9 @@ class CvEventManager(object):
  'Apply the effects of an event '
  context, playerID, netUserData, popupReturn = argsList
  + if context < 0:
  + return False
  +
  if context == CvUtil.PopupTypeEffectViewer:
  return CvDebugTools.g_CvDebugTools.applyEffectViewer( playerID, netUserData, popupReturn )
  