$ git clone -n https://src.fedoraproject.org/rpms/python-cramjam.git /var/lib/mock/f41-build-858997-168518/root/chroot_tmpdir/scmroot/python-cramjam
Cloning into '/var/lib/mock/f41-build-858997-168518/root/chroot_tmpdir/scmroot/python-cramjam'...
$ git fetch origin de7622062a1c9faffe8121481b04b985b5cbabf6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-cramjam
 * [new ref]         de7622062a1c9faffe8121481b04b985b5cbabf6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at de76220 Rebuilt with rust-brotli 7.0.0