When comparing files between the base repo and forked repo, the "blob
excerpt" link should point to the forked repo, because the commit
doesn't exist in base repo.
Co-authored-by: Giteabot <teabot@gitea.io>
(cherry picked from commit f48cc501c46a2d34eb701561f01d888d689d60d5)
Conflicts:
- templates/repo/diff/section_split.tmpl
- templates/repo/diff/section_unified.tmpl
Resolved the conflict by picking Gitea's change over ours, and
porting it.
- tests/integration/compare_test.go
Kept our test, but picked the "compare all of the relevant
links" part of the Gitea test.
