$ git clone -n https://src.fedoraproject.org/rpms/csmock.git /var/lib/mock/f41-build-side-1-2633657-25949/root/chroot_tmpdir/scmroot/csmock
Cloning into '/var/lib/mock/f41-build-side-1-2633657-25949/root/chroot_tmpdir/scmroot/csmock'...
$ git fetch origin e454d95deb1a451f67462f92ada67ba659c9fdce:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/csmock
 * [new ref]         e454d95deb1a451f67462f92ada67ba659c9fdce -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e454d95 update to latest upstream (3.6.1)