shrine

Pull request #1481: Bugfix/SHRINE2020 1558

Merge in SHRINE/shrine from bugfix/SHRINE2020-1558 to develop

* commit '94ce92589b7101a468c6bb57c9c0784db9cff9d8':
  Fixed the bug that lets the hub check for old queries in SHRINE2020-1558
  Added some unit tests but didn't find anything broken yet for SHRINE2020-1558
  experiments for SHRINE2020-1558