class BP_Theme_Compat current_theme_supports('buddypress') check runs too early

[hnla]

It might be the case that the check for theme_support in 'class BP_Theme_Compat' might be running too early to get a value returned.

If one accepts that theme setup functions should be run on the 'after_setup_theme' hook then adding add_theme_support('buddypress') on this hook will not be found move it outside the hook and the check does return true and we do bail out of the class correctly.

[r-a-y]

Thanks for the bug report, hnla!

Going to mark this as a duplicate of #4879 as that ticket already has some comments on it.