id	summary	reporter	owner	description	type	status	component	version	severity	resolution	keywords	cc	stage	has_patch	needs_docs	needs_tests	needs_better_patch	easy	ui_ux
12212	inclusion_tag behavior on variable not in context is inconsistent	Leo Shklovskii		"If you use a variable that doesn't exist in the context as an argument to a template tag created with {{{@register.inclusion_tag()}}} the tag throws a VariableDoesNotExist which is inconsistent with the way that all other tags behave in the template language.

I would expect that the wrapping {{{inclusion_tag()}}} code just passes {{{None}}} to the wrapped templatetag for the argument rather than blowing up.
"	Bug	closed	Template system	dev	Normal	fixed			Accepted	1	0	0	1	0	0