Cannot remove user from organization from members page

[classabbyamp]

• Gitea version (or commit ref): 1.11.5
• Git version: 2.24.3
• Operating system: Docker
• Database (use [x]):
  • PostgreSQL
  • MySQL
  • MSSQL
  • SQLite
• Can you reproduce the bug at https://try.gitea.io:
  • Yes (provide example URL)
  • No
  • Not relevant
• Log gist:

2020-05-26T03:00:18.664585502Z [Macaron] 2020-05-26 03:00:18: Started POST /org/{{ org name }}/members/action/remove for {{ ip }}

Description

When I try to remove an organization member from the org members page (/org/{{ org name }}/members), the request never completes, and other requests start to freeze for other users. This does not happen when removing the member from the /org/{{ org name }}/teams/{{ team name }} page.

Screenshots

[zeripath]

This is a duplicate of the already fixed issue #10549

#11438 and its backport #11439 fix this issue for master/1.12 and 1.11 respectively.

[argentini]

This is still happening for me in 1.12.4 and 1.12.5. Clicking "Remove" for the user in an org never completes and locks other processes.

[argentini]

Also, it happens when I sign in as the user and try to leave the organization.