$ git clone -n https://src.fedoraproject.org/rpms/Singular.git /var/lib/mock/f38-build-side-42-init-devel-978360-28986/root/chroot_tmpdir/scmroot/Singular
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-978360-28986/root/chroot_tmpdir/scmroot/Singular'...
$ git fetch origin 965f5d38788a1ed05b0121375a5ff7f483803071:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/Singular
 * [new ref]         965f5d38788a1ed05b0121375a5ff7f483803071 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 965f5d3 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild