$ git clone -n https://github.com/xcp-ng-rpms/xen.git /var/lib/mock/v8.0-testing-1482-819/root/chroot_tmpdir/scmroot/xen
Cloning into '/var/lib/mock/v8.0-testing-1482-819/root/chroot_tmpdir/scmroot/xen'...
$ git reset --hard 185776b797d61e19421c716fe9d7713c13505df9
Downloading SOURCES/xen.tar.gz (28 MB)
HEAD is now at 185776b Fix security issue XSA-300 for dom0