fix unescaping multiple slashes in branch name in URLs

features/browse.feature

@@ -73,9 +73,9 @@ Feature: hub browse
 
   Scenario: Complex branch
     Given I am in "git://github.com/mislav/dotfiles.git" git repo
-    And I am on the "foo/bar" branch with upstream "origin/baz/qux"
+    And I am on the "foo/bar" branch with upstream "origin/baz/qux/moo"
     When I successfully run `hub browse`
-    Then "open https://github.com/mislav/dotfiles/tree/baz/qux" should be run
+    Then "open https://github.com/mislav/dotfiles/tree/baz/qux/moo" should be run
 
   Scenario: Wiki repo
     Given I am in "git://github.com/defunkt/hub.wiki.git" git repo

lib/hub/commands.rb

@@ -649,9 +649,9 @@ module Hub
         # $ hub browse -- wiki
         path = case subpage = args.shift
         when 'commits'
-          "/commits/#{CGI.escape(branch.short_name).sub("%2F", "/")}"
+          "/commits/#{branch_in_url(branch)}"
         when 'tree', NilClass
-          "/tree/#{CGI.escape(branch.short_name).sub("%2F", "/")}" if branch and !branch.master?
+          "/tree/#{branch_in_url(branch)}" if branch and !branch.master?
         else
           "/#{subpage}"
         end
@@ -660,6 +660,11 @@ module Hub
       end
     end
 
+    def branch_in_url(branch)
+      require 'CGI'
+      CGI.escape(branch.short_name).gsub("%2F", "/")
+    end
+
     # $ hub compare 1.0..fix
     # > open https://github.com/CURRENT_REPO/compare/1.0...fix
     # $ hub compare refactor