Incorrect 'active' link classification

[palypster]

If I have a sidebar that has two titles (sections) that has the same name, but with different links:

<!-- _navbar.md -->

- [Admin Generator](admin-generator#admin-generator)
  - [About](admin-generator#about)
  - [Requirements](admin-generator#requirements)
  - [Installation](admin-generator#installation)
  - [Usage](admin-generator#usage)
  - [User generators](admin-generator#user-generators)

- [Authentication & Authorization](admin-auth#admin-auth)
  - [About](admin-auth#about)
  - [Requirements](admin-auth#requirements)
  - [Installation](admin-auth#installation)
  - [Authentication](admin-auth#authentication)
  - [Password rest](admin-auth#password-reset)
  - [Activation](admin-auth#activation)
  - [Using a middleware](admin-auth#middleware)

like for example "Requirements" section in the example above, it is going to set class 'active' on the second one no matter what page is actually displayed. I guess it checks the title of the page to resolve the active link. I think current URL should be used instead.