$ git clone -n https://src.fedoraproject.org/rpms/kf5-bluez-qt.git /var/lib/mock/f40-build-1504094-23883/root/chroot_tmpdir/scmroot/kf5-bluez-qt
Cloning into '/var/lib/mock/f40-build-1504094-23883/root/chroot_tmpdir/scmroot/kf5-bluez-qt'...
$ git fetch origin b9d748df6574434576c91625fbda066c145f991b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-bluez-qt
 * [new ref]         b9d748df6574434576c91625fbda066c145f991b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b9d748d 5.116.0