$ git clone -n https://github.com/xcp-ng-rpms/xen.git /var/lib/mock/v8.2-incoming-5503-8712/root/chroot_tmpdir/scmroot/xen
Cloning into '/var/lib/mock/v8.2-incoming-5503-8712/root/chroot_tmpdir/scmroot/xen'...
$ git reset --hard 82c4e81d3a444e6c1d2e9e0d2e98f1943363dce2
Downloading SOURCES/xen-4.13.5.tar.gz (6.2 MB)
HEAD is now at 82c4e81 Merge pull request #35 from xcp-ng-rpms/xsa-439