In June 2015, GIB was updated accordingly:
diana_eva, on 2015-June-11, 08:35, said:
GIB still plays that an auction like 1♦ - 1♠ - 1N - 3♣ is a signoff in clubs, but now it shows 6+ instead of 5+, and the range was corrected as well.
The following hand just popped up in a challenge: