Fix project namespace links

What does this MR do?

Fixes pipeline links

Why was this MR needed?

Links went to a 404 on fork MR pipelines tab

What are the relevant issue numbers?

Closes #21107 (closed)

Added 18 commits:

• dd8665e3...a16ac37e - 17 commits from branch master
• 561093e7 - Fix project namespace links

Reassigned to @ayufan

mentioned in issue #20946 (closed)

The fix looks good to me, but I think this is around fourth time we have the same bug in pipelines/builds, where the project the pipeline belongs to is different than @project in the partial, because it is a fork, and we still do not have view test for that.

Since this will go into patch release, we may still have some time to add at least one view test example for that.

Reassigned to @annabeldunstone

@grzesiek I agree. We should probably test that and make sure that it doesn't brake in the future.

Maybe the best would be to create a technical debt issue?

@grzesiek are you saying there are project path bugs in both pipelines & builds? I'm thinking that should be a separate issue to get good test coverage. Unless someone can write some quick ones for this MR

@annabeldunstone I merely say that we had bugs in the past. The problem with source project / target project mismatch applies to both builds and pipelines. Of course would need tests for both partials in context when the project is a fork.

@grzesiek that makes sense. I think this should get merged in sooner though and a technical debt issue can be created to test everything thoroughly

@annabeldunstone I agree. I will create technical debt issue.

Reassigned to @grzesiek

@annabeldunstone LGTM 👍 I've created a technical debt issue - https://gitlab.com/gitlab-org/gitlab-ce/issues/21278. Passing to @rspeicher.

Reassigned to @rspeicher

Status changed to merged

mentioned in commit 134cea94

Picked into 8-11-stable, will go into 8.11.1.

Removed ~149423 label

mentioned in commit 453c225d

mentioned in issue #21180 (closed)

mentioned in issue #21350 (closed)

mentioned in issue #21409 (closed)

mentioned in issue #21418 (closed)

Mentioned in commit maxraab/gitlab-ce@453c225d