[ticket/12392] Include $profile_fields in core.memberlist_view_profile

PHPBB3-12392
[ticket/12392] Fix avatar double assignment bug

PHPBB3-12392
Merge pull request #2294 from PayBas/ticket/12392

[ticket/12392] Include $profile_fields in core.memberlist_view_profile

* PayBas/ticket/12392:
  [ticket/12392] Fix avatar double assignment bug
  [ticket/12392] Include $profile_fields in core.memberlist_view_profile