$ git clone -n https://github.com/xcp-ng-rpms/kernel.git /var/lib/mock/v8.3-incoming-11328-29646/root/chroot_tmpdir/scmroot/kernel
Cloning into '/var/lib/mock/v8.3-incoming-11328-29646/root/chroot_tmpdir/scmroot/kernel'...
$ git fetch origin 33562ffd3784d6b9ec52bf227319befd69512996:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/kernel
 * [new ref]             33562ffd3784d6b9ec52bf227319befd69512996 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 33562ffd3 Add missing patch for CVE-2020-14314