$ git clone -n https://src.fedoraproject.org/rpms/trellis.git /var/lib/mock/f40-build-780857-131358/root/chroot_tmpdir/scmroot/trellis
Cloning into '/var/lib/mock/f40-build-780857-131358/root/chroot_tmpdir/scmroot/trellis'...
$ git fetch origin b64c98b058d8eb9cec500d5c620a9168e3fd3f5e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/trellis
 * [new ref]         b64c98b058d8eb9cec500d5c620a9168e3fd3f5e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b64c98b Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild