ycb_django_pr13023

what a new run launched now would send

DecimalField.to_python() raises TypeError on dict values.
Description
	
A call to DecimalField.to_python() with a dictionary as the value parameter produces TypeError instead of ValidationError. This is a problem, for example, when you try to save a model object, and a decimal field got set to a dictionary by mistake. The TypeError exception that comes back makes it hard to track the problem to the field if the object has a lot of fields.
I am proposing a patch to fix it:
​https://github.com/django/django/pull/13023

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