$ git clone -n https://src.fedoraproject.org/rpms/anaconda.git /var/lib/mock/f41-build-side-2-python-2707806-30463/root/chroot_tmpdir/scmroot/anaconda
Cloning into '/var/lib/mock/f41-build-side-2-python-2707806-30463/root/chroot_tmpdir/scmroot/anaconda'...
$ git fetch origin 4e7041c6715b4564383090c29b3852fc993aca10:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/anaconda
 * [new ref]         4e7041c6715b4564383090c29b3852fc993aca10 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4e7041c Update to 41.31 upstream release