$ git clone -n https://src.fedoraproject.org/rpms/docker-buildkit.git /var/lib/mock/f45-build-7682-368/root/chroot_tmpdir/scmroot/docker-buildkit
Cloning into '/var/lib/mock/f45-build-7682-368/root/chroot_tmpdir/scmroot/docker-buildkit'...
$ git fetch origin 9370acda87fdbf303d6757fda312818cfc14d2f8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/docker-buildkit
 * [new ref]         9370acda87fdbf303d6757fda312818cfc14d2f8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9370acd Update to release v0.33.0