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[Backport 2.9-maintenance] Fix a segfault in the git fetcher #6597

Merged
merged 1 commit into from
May 31, 2022
Merged

[Backport 2.9-maintenance] Fix a segfault in the git fetcher #6597

merged 1 commit into from
May 31, 2022

Commits on May 31, 2022

  1. Fix a segfault in the git fetcher 

    The git fetcher code used to dereference the (potentially empty) `ref`
input attribute. This was magically working, probably because the
compiler somehow outsmarted us, but is now blowing up with newer nixpkgs
versions.

Fix that by not trying to access this field while we don't know for sure
that it has been defined.

Fix #6554

(cherry picked from commit 027fd45)
    @github-actions
    Théophane Hufschmitt authored and github-actions[bot] committed May 31, 2022
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