$ git clone -n https://src.fedoraproject.org/rpms/coin-or-Cbc.git /var/lib/mock/f40-build-2209009-52150/root/chroot_tmpdir/scmroot/coin-or-Cbc
Cloning into '/var/lib/mock/f40-build-2209009-52150/root/chroot_tmpdir/scmroot/coin-or-Cbc'...
$ git fetch origin 73ccdaff91a18574ce26ad8572c8a913eba1acea:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/coin-or-Cbc
 * [new ref]         73ccdaff91a18574ce26ad8572c8a913eba1acea -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 73ccdaf Rebuild for MUMPS-5.6.2