bugfix, when matching multiple paths with `get`, `post`, ...

This problem was introduced with:

https://github.com/rails/rails/commit/d03aa104e069be4e301efa8cefb90a2a785a7bff

actionpack/lib/action_dispatch/routing/mapper.rb

@@ -589,8 +589,7 @@ def delete(*args, &block)
         private
           def map_method(method, args, &block)
             options = args.extract_options!
-            options[:via]    = method
-            options[:path] ||= args.first if args.first.is_a?(String)
+            options[:via] = method
             match(*args, options, &block)
             self
           end
@@ -1381,7 +1380,11 @@ def match(path, *rest)
             raise ArgumentError, "Unknown scope #{on.inspect} given to :on"
           end
 
-          paths.each { |_path| decomposed_match(_path, options.dup) }
+          paths.each do |_path|
+            route_options = options.dup
+            route_options[:path] ||= _path if _path.is_a?(String)
+            decomposed_match(_path, route_options)
+          end
           self
         end
 

actionpack/test/dispatch/routing_test.rb

@@ -1112,6 +1112,21 @@ def test_index
     assert_equal 'projects#info', @response.body
   end
 
+  def test_match_with_many_paths_containing_a_slash
+    draw do
+      get 'get/first', 'get/second', 'get/third', :to => 'get#show'
+    end
+
+    get '/get/first'
+    assert_equal 'get#show', @response.body
+
+    get '/get/second'
+    assert_equal 'get#show', @response.body
+
+    get '/get/third'
+    assert_equal 'get#show', @response.body
+  end
+
   def test_match_shorthand_with_no_scope
     draw do
       get 'account/overview'