Handle removed source projects in MR CI commits

Fixes #3599 (closed)

@dzaporozhets assigning this to you since you wrote the original code. Perhaps checking for the source project isn't the right way, but I'm not sure if there's a better way (e.g. somewhere earlier in the process) that we can detect this.

mentioned in issue #3599 (closed)

mentioned in commit 0e0c9084

Status changed to merged

No ping, no milestone, no mention in regressions. Come on, guys.

@rspeicher sorry did not know it was a regression

Maybe @yorickpeterse can verify.

@rspeicher I'm not sure if this would constitute as a regression as it's been present ever since CI statuses for merge requests were added to the index page.

I however did ping people, though only in the issue (#3599 (closed)) and not in this merge request.

It's fixing a bug, right? We like fixing bugs. Things that fix bugs should go in the next available release, which, hey, happened to be 8.2. Let's not quibble over the semantics of is this or isn't this a regression.

I'm also not sitting around babysitting every single issue I get cc'd on checking if there's a merge request to go along with it. Please ping me on stuff that needs to be picked for a release. Thanks!

Picked into 8-2-stable.

mentioned in commit aeaa5b50