minus.rb in sparql-3.2.5

- old
+ new

@@ -69,12 +69,12 @@
         # 
         # Minus(Ω1, Ω2) = { μ | μ in Ω1 . ∀ μ' in Ω2, either μ and μ' are not compatible or dom(μ) and dom(μ') are disjoint }
         # 
         # card[Minus(Ω1, Ω2)](μ) = card[Ω1](μ)
         debug(options) {"Minus"}
-        left = queryable.query(operand(0), depth: options[:depth].to_i + 1, **options)
+        left = queryable.query(operand(0), **options.merge(depth: options[:depth].to_i + 1))
         debug(options) {"(minus left) #{left.inspect}"}
-        right = queryable.query(operand(1), depth: options[:depth].to_i + 1, **options)
+        right = queryable.query(operand(1), **options.merge(depth: options[:depth].to_i + 1))
         debug(options) {"(minus right) #{right.inspect}"}
         @solutions = left.minus(right)
         @solutions.each(&block) if block_given?
         @solutions
       end