$ git clone -n https://src.fedoraproject.org/rpms/python-logbook.git /var/lib/mock/f40-build-768497-125344/root/chroot_tmpdir/scmroot/python-logbook
Cloning into '/var/lib/mock/f40-build-768497-125344/root/chroot_tmpdir/scmroot/python-logbook'...
$ git fetch origin 940e01b68d7d0127e710effc05bc0fc2c2c74a90:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-logbook
 * [new ref]         940e01b68d7d0127e710effc05bc0fc2c2c74a90 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 940e01b 1.7.0