$ git clone -n https://src.fedoraproject.org/rpms/perl-Test-Exit.git /var/lib/mock/f39-build-1439573-32268/root/chroot_tmpdir/scmroot/perl-Test-Exit
Cloning into '/var/lib/mock/f39-build-1439573-32268/root/chroot_tmpdir/scmroot/perl-Test-Exit'...
$ git fetch origin 9b8656bd5f9ed77ab26f767b34f9af0b30089a77:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Test-Exit
 * [new ref]         9b8656bd5f9ed77ab26f767b34f9af0b30089a77 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9b8656b Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild