$ git clone -n https://github.com/xcp-ng-rpms/kernel.git /var/lib/mock/v8.0-testing-2152-1684/root/chroot_tmpdir/scmroot/kernel
Cloning into '/var/lib/mock/v8.0-testing-2152-1684/root/chroot_tmpdir/scmroot/kernel'...
$ git reset --hard 6f81b28cbd2849e8a0cb7594f30c33eafd2db833
Downloading SOURCES/kernel-4.19.19.tar.gz (161 MB)
HEAD is now at 6f81b28 Merge branch 'XS-8.0' into 8.0