$ git clone -n https://src.fedoraproject.org/rpms/perl-Ace.git /var/lib/mock/f40-build-2014830-46015/root/chroot_tmpdir/scmroot/perl-Ace
Cloning into '/var/lib/mock/f40-build-2014830-46015/root/chroot_tmpdir/scmroot/perl-Ace'...
$ git fetch origin 1b7710cad9d1f751796ba0b7f153612cbb364b0d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Ace
 * [new ref]         1b7710cad9d1f751796ba0b7f153612cbb364b0d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1b7710c Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild