🪲 BUG-#130: Fix mutable default arguments in Config.__init__ causing shared state - #150
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FernandoCelmer
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Description
Nonedefaults, instantiating providers inside the method body using explicitis not NonechecksMotivation and Context
Default argument values in Python are evaluated once at class definition time. All
Config()instances without explicit arguments shared the same provider objects (StorageDefault,NotifyDefault, etc.), causing state leak between workflows. Usingif is not None elseinstead oforensures falsy but valid provider instances are not silently replaced.Closes #130
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