$ git clone -n https://src.fedoraproject.org/rpms/coin-or-Blis.git /var/lib/mock/f40-build-796698-140843/root/chroot_tmpdir/scmroot/coin-or-Blis
Cloning into '/var/lib/mock/f40-build-796698-140843/root/chroot_tmpdir/scmroot/coin-or-Blis'...
$ git fetch origin 0f700b7fa0f880a839d24d62a71dfdb39f559892:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/coin-or-Blis
 * [new ref]         0f700b7fa0f880a839d24d62a71dfdb39f559892 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0f700b7 Version 0.95.0