$ git clone -n https://src.fedoraproject.org/rpms/gap-pkg-tomlib.git /var/lib/mock/f39-build-1542884-36525/root/chroot_tmpdir/scmroot/gap-pkg-tomlib
Cloning into '/var/lib/mock/f39-build-1542884-36525/root/chroot_tmpdir/scmroot/gap-pkg-tomlib'...
$ git fetch origin 062acb75f42ac36089c310fb5a27be29a33c5e5f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gap-pkg-tomlib
 * [new ref]         062acb75f42ac36089c310fb5a27be29a33c5e5f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 062acb7 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild