ycb_django_pr13933

what a new run launched now would send

ModelChoiceField does not provide value of invalid choice when raising ValidationError
Description
	 
		(last modified by Aaron Wiegel)
	 
Compared with ChoiceField and others, ModelChoiceField does not show the value of the invalid choice when raising a validation error. Passing in parameters with the invalid value and modifying the default error message for the code invalid_choice should fix this.
From source code:
class ModelMultipleChoiceField(ModelChoiceField):
	"""A MultipleChoiceField whose choices are a model QuerySet."""
	widget = SelectMultiple
	hidden_widget = MultipleHiddenInput
	default_error_messages = {
		'invalid_list': _('Enter a list of values.'),
		'invalid_choice': _('Select a valid choice. %(value)s is not one of the'
							' available choices.'),
		'invalid_pk_value': _('“%(pk)s” is not a valid value.')
	}
	...
class ModelChoiceField(ChoiceField):
	"""A ChoiceField whose choices are a model QuerySet."""
	# This class is a subclass of ChoiceField for purity, but it doesn't
	# actually use any of ChoiceField's implementation.
	default_error_messages = {
		'invalid_choice': _('Select a valid choice. That choice is not one of'
							' the available choices.'),
	}
	...

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