$ git clone -n https://src.fedoraproject.org/rpms/Mayavi.git /var/lib/mock/f41-build-858848-168485/root/chroot_tmpdir/scmroot/Mayavi
Cloning into '/var/lib/mock/f41-build-858848-168485/root/chroot_tmpdir/scmroot/Mayavi'...
$ git fetch origin f62478827174cc5ae7ce24316c7a2fe0e968f79e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/Mayavi
 * [new ref]         f62478827174cc5ae7ce24316c7a2fe0e968f79e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f624788 Migrate to SPDX license