$ git clone -n https://github.com/xcp-ng-rpms/openssh.git /var/lib/mock/v8.3-incoming-11573-29873/root/chroot_tmpdir/scmroot/openssh
Cloning into '/var/lib/mock/v8.3-incoming-11573-29873/root/chroot_tmpdir/scmroot/openssh'...
$ git fetch origin 88a833c8f3b2f79ec2bc3b13bd39f47d622a07ed:KOJI_FETCH_HEAD
From https://github.com/xcp-ng-rpms/openssh
 * [new ref]         88a833c8f3b2f79ec2bc3b13bd39f47d622a07ed -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 88a833c Fix: Potential ECDSA Authorized_Keys ByPass Fix: Potential CA Authorized_Keys ByPass