$ git clone -n https://github.com/xcp-ng-rpms/xen.git /var/lib/mock/v8.2-base-2683-2109/root/chroot_tmpdir/scmroot/xen
Cloning into '/var/lib/mock/v8.2-base-2683-2109/root/chroot_tmpdir/scmroot/xen'...
$ git reset --hard 774581d7e1bed550dabeb1320d05e68723eabb2e
Downloading SOURCES/xen-4.13.1.tar.gz (6.1 MB)
HEAD is now at 774581d Merge branch 'XS-8.2'