can not launch recents app after change time to earlier

[Preconditions]
set Home Button to launch recent apps

[operating steps]
1.long pres Home Button to launch recent apps activity
2.press Back Button and enter Settings
3.change current time to a earlier time
4.long press Home Button has no response

Change-Id: I354d9e273cd386a6876ad6795f6a0b1f6a2eff92