avatar_default.png URL broken

[anandb-ripencc]

• Gitea version (or commit ref): 1.14.0rc2
• Git version: 2.24.4
• Operating system: CentOS Linux 7, using pre-built gitea binary, running under systemd.
• Database (use [x]):
  • PostgreSQL
  • MySQL
  • MSSQL
  • SQLite
• Can you reproduce the bug at https://try.gitea.io:
  • Yes (provide example URL)
  • No
• Log gist:

Description

When browsing issues in a repository, the avatar images are missing. The issues page wants to download https://mydomain/img/avatar_default.png, whereas my Gitea instance is at https://mydomain/git

Screenshots