Call-in menu - not closing with B

To open map on PC you press "M" and then you can close it with another "M" press. That is logical and how it suppose to work.

To open call-in menu on PC you press "B", but another "B" press doesn't close it. I assume it is a bug and not a "feature".Please make it work like with map window, so we won't need to reach for "ESC" button in combat.