Foreman core tests broken

Hello

There's a new issue in core tests. Following failure can be observed in the
whole matrix.

UserTest.test_0066_can search users by usergroup
ActiveRecord::StatementInvalid: PG::UndefinedColumn: ERROR: column
"member_type" does not exist…

It seems be caused by the new scoped_search release that was published 18
hours ago. Interestingly enough, the only 2 new commits in this release were
contribute by foreman devs [1]. Pinning the scoped_search version to 4.1.0
workarounds the issue.

[1] https://github.com/wvanbergen/scoped_search/commits/master

··· -- Marek