v1.8.0-rc3

* SECURITY
  * Prevent remote code execution vulnerability with mirror repo URL settings (#6593) (#6594)
* BUGFIXES
  * Allow resend of confirmation email when logged in (#6482) (#6486)
  * Fix mail notification when close/reopen issue (#6581) (#6588)
  * Change API commit summary to full message (#6591) (#6592)
  * Add option to disable refresh token invalidation (#6584) (#6587)
  * Fix bug user search API pagesize didn't obey ExplorePagingNum (#6579) (#6586)
  * Fix new repo alignment (#6583) (#6585)
  * Prevent server 500 on compare branches with no common history (#6555) (#6558)
  * Properly escape release attachment URL (#6512) (#6523)
  * Hacky fix for alignment of the create-organization dialog (#6455) (#6462)
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