$ git clone -n https://github.com/xcp-ng-rpms/kernel-alt.git /var/lib/mock/v8.0-testing-1472-784/root/chroot_tmpdir/scmroot/kernel-alt
Cloning into '/var/lib/mock/v8.0-testing-1472-784/root/chroot_tmpdir/scmroot/kernel-alt'...
$ git reset --hard 72e82ba59a6d8b7d73215115bc8fd53ad66c3f32
Downloading SOURCES/kernel-4.19.19.tar.gz (161 MB)
HEAD is now at 72e82ba Releasing kernel-alt 4.19.58