Steps to reproduce:

1. Go to a project (that has open and closed tasks in it, so you can verify)
   • For example: Arcanist
2. Click on "View all" in the "Open Tasks" box
3. Scroll up and uncheck "Open" under Status, then click Execute Query
   • {F179556}
4. Scroll back up and notice that "Open" is checked again, and the search does not include closed tasks.
   • {F179554}
5. If you uncheck it a second time, it will actually search for open tasks.

This only seems to happen if you go to a search by clicking on "View all" from a project page.