$ git clone -n https://github.com/xcp-ng-rpms/kernel.git /var/lib/mock/v8.1-testing-2893-2367/root/chroot_tmpdir/scmroot/kernel
Cloning into '/var/lib/mock/v8.1-testing-2893-2367/root/chroot_tmpdir/scmroot/kernel'...
$ git reset --hard 34aabb79a6a708f60461f75113761381dd20a291
Downloading SOURCES/kernel-4.19.19.tar.gz (161 MB)
HEAD is now at 34aabb7 Security update