$ git clone -n https://github.com/xcp-ng-rpms/kernel-alt.git /var/lib/mock/v8.1-testing-2080-1498/root/chroot_tmpdir/scmroot/kernel-alt
Cloning into '/var/lib/mock/v8.1-testing-2080-1498/root/chroot_tmpdir/scmroot/kernel-alt'...
$ git reset --hard e95a62208d1ab3837b315d14cd2c3197b6d10c84
Downloading SOURCES/kernel-4.19.19.tar.gz (161 MB)
HEAD is now at e95a622 Update patch level to 4.19.108