fixed bug with branch/commit detection in select

app/helpers/application_helper.rb

@@ -54,7 +54,7 @@ module ApplicationHelper
 
     # If reference is commit id - 
     # we should add it to branch/tag selectbox
-    if(@ref && !options.include?(@ref) &&
+    if(@ref && !options.flatten.include?(@ref) &&
        @ref =~ /^[0-9a-zA-Z]{6,52}$/)
       options << ["Commit", [@ref]]
     end