$ git clone -n https://github.com/xcp-ng-rpms/xen.git /var/lib/mock/v8.2-testing-3527-3275/root/chroot_tmpdir/scmroot/xen
Cloning into '/var/lib/mock/v8.2-testing-3527-3275/root/chroot_tmpdir/scmroot/xen'...
$ git reset --hard be8b4e00be628366e1b95236f9290a6307faa4d1
Downloading SOURCES/xen-4.13.4.tar.gz (6.1 MB)
HEAD is now at be8b4e0 Add fixes for XSA-400 regression