$ git clone -n https://github.com/xcp-ng-rpms/xen.git /var/lib/mock/v8.3-fasttrack-7491-19879/root/chroot_tmpdir/scmroot/xen
Cloning into '/var/lib/mock/v8.3-fasttrack-7491-19879/root/chroot_tmpdir/scmroot/xen'...
$ git reset --hard b104ed349249a965cfdf3f587284ab177458fdfc
Downloading SOURCES/xen-4.17.5.tar.gz (6.7 MB)
HEAD is now at b104ed3 Merge branch 'XS-8.3'