[PATCH 1/4] t5510: ensure that the packed-refs file needs locking

One of the tests in t5510 asserts that a `git fetch --prune` detects failures to prune branches. This is done by locking the packed-refs file, which would then later lead to a locking issue when Git tries to rewrite the file to prune the branches from it.

Interestingly though, we do not pack the about-to-be-pruned branch into the packed-refs file, so it never even contained that branch in the first place. While this is good enough right now because the pruning will always lock the file regardless of whether it contains the branch or not, this is a mere implementation detail. In fact, we're about to rewrite branch deletions to make use of the ref transaction interface, which knows to skip rewrites of the packed-refs file in the case where it does not contain the branches in the first place, and this will break the test.

Prepare the test for that change by packing the refs before trying to prune them.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
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 t/t5510-fetch.sh | 1 +
 1 file changed, 1 insertion(+)