Fix buffer sorting.
Fix buffer sorting.

Bug introduced in 4ef6e889b8f1c1bc0edabfa3d922d13b48148e43

ayonix/quassel-webserver,ayonix/quassel-webserver,magne4000/quassel-webserver,Zokormazo/quassel-webserver,Zokormazo/quassel-webserver,ayonix/quassel-webserver,magne4000/quassel-webserver,Zokormazo/quassel-webserver