v1.13.7

* SECURITY
  * Update to bluemonday-1.0.6 (#15294) (#15298)
  * Clusterfuzz found another way (#15160) (#15169)
* API
  * Fix wrong user returned in API (#15139) (#15150)
* BUGFIXES
  * Add 'fonts' into 'KnownPublicEntries' (#15188) (#15317)
  * Speed up `enry.IsVendor` (#15213) (#15246)
  * Response 404 for diff/patch of a commit that not exist (#15221) (#15238)
  * Prevent NPE in CommentMustAsDiff if no hunk header (#15199) (#15201)
* MISC
  * Add size to Save function (#15264) (#15271)