--- a/core/moduleapi.lua	Sun Mar 08 19:30:54 2026 +0300
+++ b/core/moduleapi.lua	Wed Mar 11 16:59:10 2026 +0100
@@ -407,6 +407,7 @@
 	local options = set.new{default, ...};
 	if not options:contains(value) then
 		self:log("error", "Config option '%s' not in set of allowed values (one of: %s)", name, options);
+		return default;
 	end
 	return value;
 end