$ git clone -n https://src.fedoraproject.org/rpms/golang-github-cncf-udpa.git /var/lib/mock/f40-build-2218346-52601/root/chroot_tmpdir/scmroot/golang-github-cncf-udpa
Cloning into '/var/lib/mock/f40-build-2218346-52601/root/chroot_tmpdir/scmroot/golang-github-cncf-udpa'...
$ git fetch origin 41f1172c3ef2321ef0217be181a7e05df5c0e691:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-cncf-udpa
 * [new ref]         41f1172c3ef2321ef0217be181a7e05df5c0e691 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 41f1172 Update to latest commit and update spec