empty profile group displayed if multiselect box value was previously set

[DJPaul]

As reported by Quint on http://buddypress.org/community/groups/how-to-and-troubleshooting/forum/topic/xprofile-field-group-in-the-member-public-view-the-field-name-will-persist-still-be-displayed-after-the-values-have-been-cleared/

This shows up when the field group has a multiselect box where an item has been selected then saved. When viewed in Public, the Group field heading shows up as well as the field’s value. After clearing that multiselect field and saving, Public still shows the Group heading with no values. This happens in testbp as well. Thanks.

Confirmed on testbp and in trunk

[boonebgorges]

It's being caused by the fact that empty multiselect boxes are stored as empty arrays. See 3572.01.diff

[boonebgorges]

Never mind 3572.01.diff, it has some extra crap in it. 3572.02.diff has the fix.

[boonebgorges]

(In [5144]) Ensure that empty arrays don't count as field data when querying using hide_empty_fields in the xprofile query class. Fixes #3572.