message: Fix multiple video control bar
diff: @@ -279,7 +279,7 @@ export const videoChange = async (
  if (Array.isArray(newCid)) {
  return
  }
  - if (lastCid !== newCid) {
  + if (lastCid !== newCid && !lodash.isNil(newCid)) {
  fireEvent()
  lastCid = newCid
  }
  