Home link for a subwiki alias points to the main wiki

Description

When a subwiki has an alias configured, the Home link shown for the alias in the subwiki administration points to the home page of the main wiki instead of the home page of the subwiki using this alias.

Steps to reproduce

1. Create a subwiki.
2. Configure an alias for the subwiki.
3. Open the subwiki administration and view the configured aliases.
4. Click the Home link shown for the alias.

Expected result

The Home link opens the home page of the subwiki using the configured alias.

Actual result

The Home link opens the home page of the main wiki.