--- a/util/dataforms.lua	Fri Aug 03 22:05:40 2018 +0200
+++ b/util/dataforms.lua	Fri Aug 03 22:24:35 2018 +0200
@@ -58,7 +58,7 @@
 		end
 
 		local options = field.options;
-		if formtype == "form" and not options and value
+		if formtype == "form" and value
 		and (field_type == "list-single" or field_type == "list-multi") then
 			-- Allow passing dynamically generated options as values
 			options, value = value, nil;