$ git clone -n https://src.fedoraproject.org/rpms/golang-k8s-apiextensions-apiserver.git /var/lib/mock/f38-build-729718-101836/root/chroot_tmpdir/scmroot/golang-k8s-apiextensions-apiserver
Cloning into '/var/lib/mock/f38-build-729718-101836/root/chroot_tmpdir/scmroot/golang-k8s-apiextensions-apiserver'...
$ git fetch origin c55c5797d7f8d5d4ef769dcfd41175e45c3f3f95:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-k8s-apiextensions-apiserver
 * [new ref]         c55c5797d7f8d5d4ef769dcfd41175e45c3f3f95 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c55c579 Rebuild to fix FTBFS