am b387571c: am ca6de93a: Merge "Fix number counter will keep going after window losed focus."

Merge commit 'b387571c42aa08b5b9aa9833edb94c16a623e535'

* commit 'b387571c42aa08b5b9aa9833edb94c16a623e535':
  Fix number counter will keep going after window losed focus.