Control: tags -1 patchProbably better idea: upstream's fix, which looks like it actually does preserve these dtypes.
https://github.com/jsonpickle/jsonpickle/commit/eb27cf084a90e545c10f8a5435d7f17cf1d28ff9
(This hasn't been in a release yet, i.e. upgrading to 4.1.2 won't help with this, though it's plausibly a good idea more generally.)
