$ git clone -n https://src.fedoraproject.org/rpms/crossguid2.git /var/lib/mock/f40-build-801136-143719/root/chroot_tmpdir/scmroot/crossguid2
Cloning into '/var/lib/mock/f40-build-801136-143719/root/chroot_tmpdir/scmroot/crossguid2'...
$ git fetch origin 8dae30c6883244e2ed03057d7fc697aff1897a0d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/crossguid2
 * [new ref]         8dae30c6883244e2ed03057d7fc697aff1897a0d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8dae30c Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild