'Name' xprofile data misplaced during 1.2.x -> 1.5 upgrade when field has been renamed

[boonebgorges]

See http://buddypress.org/community/groups/how-to-and-troubleshooting/forum/topic/buddypress-1-5-user-fullname-saveshow-errors/?topic_page=2#post-112339

I remain highly dubious that anything is being "deleted" from xprofile, though it's possible that something funky is happening in the way that WP profiles are synced, which causes a problem with the display_name column in wp_users.

I have not tested this yet myself.

I've got an install with the default field renamed, and I can't reproduce this either. However, I'm using custom sync code, so I can't completely rule out that part of the equation. I'll try reverting it later, and see what happens.

See #3780

I assume this is the same/linked to #3725

#3925 is probably related.

Closing this ticket in favor of #3725, which has more discussion on it.