I've seen many warnings in the previous (unpatched) situation. PHP fools you again!
If this is the user's first visit to the Special:UpdateProfile/personal, then they see
Notice: Undefined variable: movies in /home/mah/work/code/mediawiki/mw-svn/extensions/SocialProfile/UserProfile/SpecialUpdateProfile.php on line 556 Notice: Undefined variable: tv in /home/mah/work/code/mediawiki/mw-svn/extensions/SocialProfile/UserProfile/SpecialUpdateProfile.php on line 561 Notice: Undefined variable: music in /home/mah/work/code/mediawiki/mw-svn/extensions/SocialProfile/UserProfile/SpecialUpdateProfile.php on line 566 Notice: Undefined variable: books in /home/mah/work/code/mediawiki/mw-svn/extensions/SocialProfile/UserProfile/SpecialUpdateProfile.php on line 571 Notice: Undefined variable: magazines in /home/mah/work/code/mediawiki/mw-svn/extensions/SocialProfile/UserProfile/SpecialUpdateProfile.php on line 576 Notice: Undefined variable: videogames in /home/mah/work/code/mediawiki/mw-svn/extensions/SocialProfile/UserProfile/SpecialUpdateProfile.php on line 581 Notice: Undefined variable: snacks in /home/mah/work/code/mediawiki/mw-svn/extensions/SocialProfile/UserProfile/SpecialUpdateProfile.php on line 589 Notice: Undefined variable: drinks in /home/mah/work/code/mediawiki/mw-svn/extensions/SocialProfile/UserProfile/SpecialUpdateProfile.php on line 594
Similar messages involving $custom[1-4] on Special:UpdateProfile/custom
Fixed in r77336.