Template error listing pull requests

[cez81]

• Gitea version (or commit ref): 1.1.0+139-gb7da5a6
• Git version: 2.7.4
• Operating system: Ubuntu 16.04
• 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:

template: repo/issue/list:12:135: executing "repo/issue/list" at <.PullRequestCtx.Base...>: can't evaluate field Link in type *models.Repository

Description

Trying to list pull requests for repo gives me a template error. Repo is a fork of a mirror repo.
I have tried to reproduce on https://try.gitea.io but can't get same result.

Just looking at the error message it looks like .PullRequestCtx.BaseRepo.Link should be .PullRequestCtx.BaseRepo.RepoLink at https://github.com/go-gitea/gitea/blob/master/templates/repo/issue/list.tmpl#L12

[cez81]

Changing field name to RepoLink didn't help. Will continue investigating...

Edit:: I can't quite work out what's wrong. I think the problem is in this area
https://github.com/go-gitea/gitea/blob/master/modules/context/repo.go#L325-L331

When BaseRepo doesn't allow pulls (in this case because it's a mirror), ctx.Repo.PullRequest.BaseRepo isn't set.

I have added some debug outputs in the interesting area here -> cez81@a0011bc