$ git clone -n https://src.fedoraproject.org/rpms/perl-Algorithm-Merge.git /var/lib/mock/f39-build-1433377-31868/root/chroot_tmpdir/scmroot/perl-Algorithm-Merge
Cloning into '/var/lib/mock/f39-build-1433377-31868/root/chroot_tmpdir/scmroot/perl-Algorithm-Merge'...
$ git fetch origin 5b26843e64b60233b7c1d199b77d76312e571f5d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Algorithm-Merge
 * [new ref]         5b26843e64b60233b7c1d199b77d76312e571f5d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5b26843 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild