Can't DROP INDEX IDX_repository_is_bare; check that it exists

[sitilge]

• Gitea version (or commit ref): 1.8.0
• Git version: 2.21.0
• Operating system: arch linux 4.18.16
• 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:

2019/05/01 20:40:05 [I] ORM engine initialization attempt #1/10...
2019/05/01 20:40:05 [I] Migration: rename repo is_bare to repo is_empty
2019/05/01 20:40:05 [D] ORM engine initialization attempt #1/10 failed. Error: migrate: do migrate: Drop index failed: Error 1091: Can't DROP INDEX IDX_repository_is_bare; check that it exists
2019/05/01 20:40:05 [I] Backing off for 3 seconds

Description

After upgrading gitea, the gitea won't start and the error Can't DROP INDEX IDX_repository_is_bare; check that it exists appears in the logs.

[sitilge]

Manually recreating the index solves the problem

CREATE INDEX IDX_repository_is_bare ON repository (is_bare)