$ git clone -n https://github.com/xcp-ng-rpms/xen.git /var/lib/mock/v8.2-incoming-6924-16834/root/chroot_tmpdir/scmroot/xen
Cloning into '/var/lib/mock/v8.2-incoming-6924-16834/root/chroot_tmpdir/scmroot/xen'...
$ git reset --hard 305a9dc09a3fa3dbc3f397dcd988dbd689637baa
Downloading SOURCES/xen-4.13.5.tar.gz (6.2 MB)
HEAD is now at 305a9dc Add patch to fix XSA-458