[Geoserver-users] "XML POST request log buffer in characters" value hard-coded?

I changed the value of this variable in global settings but in the log file i keep finding xml post requests truncated at 1024 chars. My logging level is GEOSERVER_DEVELOPER_LOGGING.

Do I misunderstand the meaning of this parameter?
Is there a set or range of numbers allowed? Or it depends on the logging level?

Thank you
  maxx