$ git clone -n https://src.fedoraproject.org/rpms/perl-XML-Catalog.git /var/lib/mock/f39-build-1452943-32867/root/chroot_tmpdir/scmroot/perl-XML-Catalog
Cloning into '/var/lib/mock/f39-build-1452943-32867/root/chroot_tmpdir/scmroot/perl-XML-Catalog'...
$ git fetch origin 4e947a1f2c52696d86620d51452ea1f5db1f6415:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-XML-Catalog
 * [new ref]         4e947a1f2c52696d86620d51452ea1f5db1f6415 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4e947a1 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild