Bug#377944: Warning - Error at GPOS Table 4097 at Sid

[Patrick Matthäi]

Package: libpango1.0-0
Version: 1.12.3-1
Serverity: normal

Hello,
Everyday I'm getting errors / warnings about pango from the applications 
firefox and xchat. They are listed in the .xsession-errors.

Log:

(Gecko:5442): Pango-WARNING **: Error loading GPOS table 4097

(Gecko:5442): Pango-WARNING **: Error loading GPOS table 4097
Uh oh.. can't write data..
X Error: BadWindow (invalid Window parameter) 3
  Major opcode:  19
  Minor opcode:  0
  Resource id:  0x240003b
QClipboard::setData: Cannot set X11 selection owner for CLIPBOARD
X Error: BadWindow (invalid Window parameter) 3
  Major opcode:  19
  Minor opcode:  0
  Resource id:  0x240046a

(Gecko:5469): Pango-WARNING **: Error loading GPOS table 4097
X Error: BadWindow (invalid Window parameter) 3
  Major opcode:  19
  Minor opcode:  0
  Resource id:  0x241828b
Uh oh.. can't write data..
X Error: BadWindow (invalid Window parameter) 3
  Major opcode:  19
  Minor opcode:  0
  Resource id:  0x240b6a7
Uh oh.. can't write data..

(Gecko:5469): Pango-WARNING **: Error loading GPOS table 4097
X Error: BadWindow (invalid Window parameter) 3
  Major opcode:  19
  Minor opcode:  0
  Resource id:  0x240003b
QClipboard::setData: Cannot set X11 selection owner for CLIPBOARD
DOUBLE-CLICK: 250 --> -1 THRESHOLD: 8 --> -1 X Error: BadWindow (invalid 
Window parameter) 3
  Major opcode:  19
  Minor opcode:  0
  Resource id:  0x2400032

(Gecko:5602): Pango-WARNING **: Error loading GPOS table 4097

(Gecko:5602): Pango-WARNING **: Error loading GPOS table 4097

(xchat:5020): Pango-WARNING **: Error loading GPOS table 4097
Uh oh.. can't write data..
X Error: BadWindow (invalid Window parameter) 3
  Major opcode:  19
  Minor opcode:  0
  Resource id:  0x1c0002f

(Gecko:5047): Pango-WARNING **: Error loading GPOS table 4097

(Gecko:5047): Pango-WARNING **: Error loading GPOS table 4097