Bug#507818: mldonkey-server: mlnet does not start, logs syntax error in downloads.ini

Package: mldonkey-server
Version: 2.9.5-1.1
Severity: grave
Justification: renders package unusable

After the installation mlnet is running.

After the:
# /etc/init.d/mldonkey-server stop
# /etc/init.d/mldonkey-server start
the server does not start anymore.

/var/log/mldonkey/mlnet.log is empty.

After remove '--background' from /etc/init.d/mldonkey-server, daemon logs:

Syntax error while parsing file downloads.ini at pos 29792:(Failure("float_of_string"))
it seems that downloads.ini is corrupt,
try to use a backup from /var/lib/mldonkey/old_config

Corresponding line in /var/lib/mldonkey/downloads.ini is:
buffer_writes_delay = 30.

-- System Information:
Debian Release: lenny/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: i386 (i686)

Kernel: Linux 2.6.24-1-686 (SMP w/2 CPU cores)