[Bbradley62]

Over 2♥, potential bids of 2♠ and 3♠ were both described as:
3 of 5 top honors, 6+♠, 10-12 total points.

http://tinyurl.com/l6vgz7l

Should 3♠ show 13-15 (since 4♠ shows 16-20), or is this a Lebensohl auction? If the latter, what is the distinction between potential bids of 2♠ vs 3♠?

[georgi]

More likely seems like bug with given explanation ( but GIB "reads" underneath and what's displayed is not what its knows ).

So,
1♦ - 2♥ - :
2♠ - Free bid -- 5+ ♠; 11+ total points

3♠ - Free bid -- rebiddable ♠; 15+ total points

4♠ - -- strong rebiddable ♠; 13 total points

First two are RF, last is to play.

Explanations you've described as for opening 2Major in 4th seat.