v1.4.0-rc2

* SECURITY
  * Fix escaping changed title in comments (#3530) (#3534)
  * Escape search query (#3486) (#3488)
* BUGFIXES
  * Fix query protected branch bug (#3563) (#3571)
  * Fix remove team member issue (#3566) (#3570)
  * Fix the protected branch panic issue (#3567) (#3569)
  * If Mirrors repository no content is fetched, updated time should not be changed (#3551) (#3565)
  * Bug fix for mirrored repository releases sorted (#3522) (#3555)
  * Add issue closed time column to fix activity closed issues list (#3537) (#3540)
  * Update markbates/goth library to support OAuth2 with new dropbox API (#3533) (#3539)
  * Fixes missing avatars in offline mode (#3471) (#3477)
  * Fix synchronization bug in repo indexer (#3455) (#3461)
  * Fix rendering of wiki page list if wiki repo contains other files (#3454) (#3463)
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