Avoid recycle task of different user

A task that belongs to work profile user was reused while starting
an owner user activity. The task was recycled and had delivered
new intent to the existing top activity (belongs to work profile user)
instead of adding a new activity (of owner profile user) on top.

Bug: 144915832
Test: atest ActivityStarterTests
Test: repro steps on bug
Change-Id: Ic210f8c436c086bca590facbdba5fe5fa556f4df