$ git clone -n https://github.com/xcp-ng-rpms/kernel-alt.git /var/lib/mock/v8.2-u-tescande1-7087-17621/root/chroot_tmpdir/scmroot/kernel-alt
Cloning into '/var/lib/mock/v8.2-u-tescande1-7087-17621/root/chroot_tmpdir/scmroot/kernel-alt'...
$ git reset --hard 35788502a03ec6cecafa4c31d59a19f1dbdb7e61
Downloading SOURCES/kernel-4.19.316.tar.gz (166 MB)
HEAD is now at 3578850 Merge pull request #24 from xcp-ng-rpms/kernel-v4.19.316