Fix plotting label as dict (#5683)
Fix plotting label as dict (#5683)

The problem here is that `one_of` looks for the first successful match,
and a `Dict[str, Expression]` will always satisfy `expr_any` before
it reaches the dict checker.
cseed/hail,cseed/hail,hail-is/hail,danking/hail,danking/hail,danking/hail,danking/hail,hail-is/hail,cseed/hail,hail-is/hail,cseed/hail,hail-is/hail,danking/hail,danking/hail,hail-is/hail,hail-is/hail,cseed/hail,cseed/hail,cseed/hail,hail-is/hail,danking/hail,cseed/hail,hail-is/hail,danking/hail