$ git clone -n https://src.fedoraproject.org/rpms/rust-below-view.git /var/lib/mock/f42-build-side-1-3540382-46574/root/chroot_tmpdir/scmroot/rust-below-view
Cloning into '/var/lib/mock/f42-build-side-1-3540382-46574/root/chroot_tmpdir/scmroot/rust-below-view'...
$ git fetch origin 64286cab417536c8342284fc12df0386a40eca3d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-below-view
 * [new ref]         64286cab417536c8342284fc12df0386a40eca3d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 64286ca Update to 0.9.0; Fixes: RHBZ#2347639