$ git clone -n https://github.com/xcp-ng-rpms/xen.git /var/lib/mock/v7.99-base-539-248/root/chroot_tmpdir/scmroot/xen
Cloning into '/var/lib/mock/v7.99-base-539-248/root/chroot_tmpdir/scmroot/xen'...
$ git reset --hard fd69ea6d01ee52554961c27e085f016d0b7992c4
Downloading SOURCES/xen-4.7.6.tar.gz (5.5 MB)
HEAD is now at fd69ea6 Bump release for rebuild