MBS-7182: ISE while displaying Edit::Medium::Edit with deleted medium
Revert "Temporarily do not do new caches, until release on monday."

This reverts commit f5f445427d39454372c6af8861d2154209e1a619.
Merge remote-tracking branch 'bitmap/mbs-7182' into beta

* bitmap/mbs-7182:
  MBS-7182: ISE while displaying Edit::Medium::Edit with deleted medium
Merge branch 'beta'

* beta: (48 commits)
  Revert "Temporarily do not do new caches, until release on monday."
  Temporarily do not do new caches, until release on monday.
  MBS-7182: ISE while displaying Edit::Medium::Edit with deleted medium
  Revert "Merge remote-tracking branch 'chirlu/mbs-4374' into beta"
  Cache Recording, Release, ReleaseGroup, and Work objects.
  mbs-7163: fixing JSON tests for video
  Update translations from transifex.
  Update pot files using current code and production database.
  Add display of character stat.
  MBS-7155: Edit medium edits don't indicate release artist
  MBS-7148: span.name-variation shouldn't include (trailing) join phrase
  Don't strech images in popup viewer
  Allow clicking the image viewer overlay to close the dialog
  mbs-7152: add average to the ratings page
  mbs-7156: fix redirect (and update some old info)
  MBS-7151: The "previous" button in the image viewer doesn't work
  Update a few copyright notices to specify "any later version" of the GPL
  MBS-6959: Fix string test in link_entity macro
  MBS-6266: Make scripts statistic sortable
  MBS-6265: Fix option to language table sorter
  ...