Bundled wires in quantikz

The following quantikz code

documentclass{article}
usepackage{tikz}
usetikzlibrary{quantikz}

begin{document}
begin{quantikz}
  qwbundle[alternate]{} & ctrlbundle{1} &  gate{R} \
  qw & targ{} & qw 
end{quantikz}
end{document}

results in this circuit diagram:

The expected output is:

What should I change to have three wires going into the final R gate?

As far as I understood from the package documentation, the number of wires should be automatically defined by the preceding circuit element.

documentclass{article}
usepackage{tikz}
usetikzlibrary{quantikz}

begin{document}
begin{quantikz}
  qwbundle[alternate]{} & ctrlbundle{1} &  gate{R}qwbundle[alternate]{} \
  qw & targ{} & qw 
end{quantikz}
end{document}