$ git clone -n https://github.com/xcp-ng-rpms/vendor-update-keys.git /var/lib/mock/v8.2-base-2456-1870/root/chroot_tmpdir/scmroot/vendor-update-keys
Cloning into '/var/lib/mock/v8.2-base-2456-1870/root/chroot_tmpdir/scmroot/vendor-update-keys'...
$ git reset --hard fdff87a7840ad2b525f3ac2bc34254ff64bbed3c
HEAD is now at fdff87a Rebuild for XCP-ng 8.2