$ git clone -n https://github.com/xcp-ng-rpms/kernel-alt.git /var/lib/mock/v8.2-testing-2919-2417/root/chroot_tmpdir/scmroot/kernel-alt
Cloning into '/var/lib/mock/v8.2-testing-2919-2417/root/chroot_tmpdir/scmroot/kernel-alt'...
$ git reset --hard e54e11c5e4a18b1e3520d67291caacfe8cc9ab33
Downloading SOURCES/kernel-4.19.19.tar.gz (161 MB)
HEAD is now at e54e11c Security update + fix a consequence of XSA-332 (kernel panic) (#11)