$ git clone -n https://src.fedoraproject.org/rpms/coin-or-lemon.git /var/lib/mock/f40-build-1945576-25181/root/chroot_tmpdir/scmroot/coin-or-lemon
Cloning into '/var/lib/mock/f40-build-1945576-25181/root/chroot_tmpdir/scmroot/coin-or-lemon'...
$ git fetch origin f884292e21e51b3f25c1832d00defb59639a24af:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/coin-or-lemon
 * [new ref]         f884292e21e51b3f25c1832d00defb59639a24af -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f884292 Rebuild for soplex 7.0.1