Cannot use object of type EntityBackdropWrapper as array

[indigoxela]

This only pops up with multiple groups audience fields.

To reproduce:

• Create two organic groups (nodes)
• Create a group content type (node)
• Add two audience fields to that content type
• Create content - select one group in one field, the other group in the other field

Result:

Error: Cannot use object of type EntityBackdropWrapper as array in og_group() (line 2126 of ...modules/og/og.module).

A bunch of functional tests re multiple fields on same group content type fails, but these are unrelated. It's a regression caused by my previous PR - shame on me. :stuck_out_tongue:

[indigoxela]

Turns out that I broke that. A PR that reverts that change is available.