Incorrect module aliasing

[thyresias]

File context.rb contains:

module Mod1
end

module Mod2
  Mod3 = Mod1
end

After executing rdoc context.rb:

• the left "Class and Module Index" shows Mod3, Mod2, Mod3
• clicking on the first "Mod3" leads to "module Mod1"
• clicking on the second "Mod3" leads to "module Mod3"

What should have been generated:

• the left "Class and Module Index" shows Mod1, Mod2, Mod2::Mod3
• clicking on "Mod1" leads to "module Mod1"
• clicking on "Mod2::Mod3" leads to "module Mod1"

Cheers.