$ git clone -n https://src.fedoraproject.org/rpms/ghc-BoundedChan.git /var/lib/mock/f41-build-835783-158645/root/chroot_tmpdir/scmroot/ghc-BoundedChan
Cloning into '/var/lib/mock/f41-build-835783-158645/root/chroot_tmpdir/scmroot/ghc-BoundedChan'...
$ git fetch origin 0bd70829a59fe60d9802ceafc03a53308416e827:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-BoundedChan
 * [new ref]         0bd70829a59fe60d9802ceafc03a53308416e827 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0bd7082 bump release