bug quand on fait /prev sur le buffer Infos

Quand je fais /prev sur le buffer Infos, j'ai ça (et ça se coupe dans ma tronche) :

Traceback (most recent call last):
File "client.py", line 72, in
main()
File "client.py", line 68, in main
client.gui.main_loop(client.stdscr)
File "/home/xbright/src/others/poezio/src/gui.py", line 219, in main_loop
self.execute()
File "/home/xbright/src/others/poezio/src/gui.py", line 350, in execute
func(args)
File "/home/xbright/src/others/poezio/src/gui.py", line 279, in rotate_rooms_right
self.window.refresh(self.current_room())
File "/home/xbright/src/others/poezio/src/window.py", line 341, in refresh
self.topic_win.refresh(room.topic)
File "/home/xbright/src/others/poezio/src/window.py", line 78, in refresh
, curses.color_pair(1))
error: addstr() returned ERR

Vilain.