$ git clone -n https://src.fedoraproject.org/rpms/perl-Algorithm-Diff.git /var/lib/mock/f40-build-2014850-46016/root/chroot_tmpdir/scmroot/perl-Algorithm-Diff
Cloning into '/var/lib/mock/f40-build-2014850-46016/root/chroot_tmpdir/scmroot/perl-Algorithm-Diff'...
$ git fetch origin 6a1d9c6aeff0e4efd14db5191046064a41e09fac:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Algorithm-Diff
 * [new ref]         6a1d9c6aeff0e4efd14db5191046064a41e09fac -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6a1d9c6 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild