add conditionals query

queries/locals.scm

@@ -11,6 +11,13 @@ variable: (identifier) @local.definition
 (block_clause) @local.scope
 (partialdef_clause) @local.scope
 
+; ForNode renders nodelist_empty inside the same context.push() as the loop
+; body, so "{% empty %}" is part of the loop's scope even though it is a
+; separate clause: "{% for x in ys %}a{% empty %}{% now "Y" as n %}{% endfor %}{{ n }}"
+; is empty. queries/conditionals.scm names both clauses as branches of the
+; same group and relies on this.
+(empty_clause) @local.scope
+
 ; blocktranslate pushes a context for its "with" and "count" bindings. Its
 ; asvar target is not one of them: it is written in the same tag but assigned
 ; outside it, and carries an "asvar" field rather than "variable" so that this