Call #to_s when serializing GlobalID. Fix #95

[miyagawa]

This is another approach to fix #95 by calling to_s when serializing ActiveModel::GlobalId object, so that there's no ambiguity about how to serialize GlobalId object regardless of the queue backend.

Thanks @zzak for the suggestion ❤️

[seuros]

@miyagawa thank you for your work. I think you should fix that in activemodel GlobalID instead.

[miyagawa]

@seuros you mean like this one? rails/activemodel-globalid#15

@zzak and I looked at the code and sure, we can fix it either way, but fixing it inside activejob leaves no ambiguity about serializing, since ActiveJob::Arguments is the code that decides how to persist the GlobalID objects.

[seuros]

yes. Leave both PR open.
@dhh , @guilleiguaran , @rafaelfranca are better suited to advice you which approach they think it best

[dhh]

👍