$ git clone -n https://src.fedoraproject.org/rpms/fedora-review.git /var/lib/mock/f39-build-1657234-40565/root/chroot_tmpdir/scmroot/fedora-review
Cloning into '/var/lib/mock/f39-build-1657234-40565/root/chroot_tmpdir/scmroot/fedora-review'...
$ git fetch origin 26adc454db1cb96b7929ef4dc602cc5f852bfafe:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fedora-review
 * [new ref]         26adc454db1cb96b7929ef4dc602cc5f852bfafe -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 26adc45 Add bc as a dependency