$ git clone -n https://github.com/xcp-ng-rpms/kernel-alt.git /var/lib/mock/v8.2-base-2574-1989/root/chroot_tmpdir/scmroot/kernel-alt
Cloning into '/var/lib/mock/v8.2-base-2574-1989/root/chroot_tmpdir/scmroot/kernel-alt'...
$ git reset --hard 8b7039dabb2a5278cc5285714b6bed6542f5fa19
Downloading SOURCES/kernel-4.19.19.tar.gz (161 MB)
HEAD is now at 8b7039d Updated patch level to 4.19.140 and enabled additional kernel modules.