$ git clone -n https://src.fedoraproject.org/rpms/cockpit.git /var/lib/mock/f41-build-858334-168340/root/chroot_tmpdir/scmroot/cockpit
Cloning into '/var/lib/mock/f41-build-858334-168340/root/chroot_tmpdir/scmroot/cockpit'...
$ git fetch origin ca39a471fb67cc45b33b2c6f43dfea0d4c928708:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/cockpit
 * [new ref]         ca39a471fb67cc45b33b2c6f43dfea0d4c928708 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ca39a47 Update to 326 upstream release