$ git clone -n https://src.fedoraproject.org/rpms/ghc-wai-logger.git /var/lib/mock/f39-build-1507881-35316/root/chroot_tmpdir/scmroot/ghc-wai-logger
Cloning into '/var/lib/mock/f39-build-1507881-35316/root/chroot_tmpdir/scmroot/ghc-wai-logger'...
$ git fetch origin ca407348457799f3d27428059757991013fa784d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-wai-logger
 * [new ref]         ca407348457799f3d27428059757991013fa784d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ca40734 bump release