$ git clone -n https://src.fedoraproject.org/rpms/libvncserver.git /var/lib/mock/f33-build-172917-44133/root/chroot_tmpdir/scmroot/libvncserver
Cloning into '/var/lib/mock/f33-build-172917-44133/root/chroot_tmpdir/scmroot/libvncserver'...
$ git reset --hard b8138f6b1ad564d2b08e848fb842fde1340f9342
HEAD is now at b8138f6 new-sources