$ git clone -n https://src.fedoraproject.org/rpms/coin-or-OS.git /var/lib/mock/f40-build-783333-132838/root/chroot_tmpdir/scmroot/coin-or-OS
Cloning into '/var/lib/mock/f40-build-783333-132838/root/chroot_tmpdir/scmroot/coin-or-OS'...
$ git fetch origin c54bc6b14e17f7873b6bebcf7188ad37715f32f3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/coin-or-OS
 * [new ref]         c54bc6b14e17f7873b6bebcf7188ad37715f32f3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c54bc6b Build with soplex support