$ git clone -n https://src.fedoraproject.org/rpms/bids-schema.git /var/lib/mock/f42-build-3384209-45084/root/chroot_tmpdir/scmroot/bids-schema
Cloning into '/var/lib/mock/f42-build-3384209-45084/root/chroot_tmpdir/scmroot/bids-schema'...
$ git fetch origin dc49b919a3241650019af6ddaa16bd670959990e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bids-schema
 * [new ref]         dc49b919a3241650019af6ddaa16bd670959990e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dc49b91 Update to 1.0.3 (close RHBZ#2346980)