Error generating hyperlink on the the branchs page of forked Repository

[a1012112796]

• Gitea version (or commit ref): 1.10.3
• Git version:
• Operating system:
• Database (use [x]):
  • PostgreSQL
  • MySQL
  • MSSQL
  • SQLite
• Can you reproduce the bug at https://try.gitea.io:
  • Yes (provide example URL)
    error link : https://try.gitea.io/a1012112796/testm/pulls/1
    the real : https://try.gitea.io/hhm_test/testm/pulls/1
    page: https://try.gitea.io/a1012112796/testm/branches/
  • No
  • Not relevant
• Log gist:

Description

Hello, everyon. I found that if an forcked Repository have make a Pull Request to the upstream of Repository , the PR link on the branchs page still base on this Repository , not the upstream. so
this hyperlink obviously cannot be linked to the correct location，and an 404 error happen. Thanks.

Screenshots

[6543]

#10090 is dublicate of #8305