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
7887	Allow empty constants in templates	Joost Cassee	nobody	"The {{{Variable}}} class does not accept empty constants ("""") in templates. The error message is:
{{{
Could not find variable at start of """"
}}}

I traced the error to the {{{__init__}}} method of {{{FilterExpression}}}. The attached diff fixes the error. I think some of the surrounding {{{if <var>}}} statements should also be rewritten as {{{if <var> is not None}}}, but the diff is restricted to fixing this bug."		closed	Template system	dev		duplicate			Unreviewed	1	0	0	0	0	0