$ git clone -n https://src.fedoraproject.org/rpms/gap-pkg-singular.git /var/lib/mock/f38-build-side-42-init-devel-641255-26392/root/chroot_tmpdir/scmroot/gap-pkg-singular
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-641255-26392/root/chroot_tmpdir/scmroot/gap-pkg-singular'...
$ git fetch origin 5314a032779aed3f73b439f9b3dd820a205aad74:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gap-pkg-singular
 * [new ref]         5314a032779aed3f73b439f9b3dd820a205aad74 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5314a03 Version 2023.02.09.