$ git clone -n https://github.com/xcp-ng-rpms/kernel.git /var/lib/mock/v8.3-incoming-6710-15436/root/chroot_tmpdir/scmroot/kernel
Cloning into '/var/lib/mock/v8.3-incoming-6710-15436/root/chroot_tmpdir/scmroot/kernel'...
$ git reset --hard 3b7ee4cc38541052926941e9f6dbaccbefe27e61
Downloading SOURCES/kernel-4.19.19.tar.gz (161 MB)
HEAD is now at 3b7ee4c Merge branch 'XS-8.3'