projman #8339 --type dumb crashes [open]

$ projman schedule  -f project.xml --type dumb
Problem valid
Traceback (most recent call last):
 File "/home/alf/dev/public/projman/bin/projman", line 4, in <module>
   run(sys.argv[1:])
 File "/home/alf/dev/public/projman/main.py", line 24, in run
   main_run(args, __doc__)
 File "/home/alf/dev/public/logilab/common/clcommands.py", line 136, in main_run
   cmd_run(arg, *args)
 File "/home/alf/dev/public/logilab/common/clcommands.py", line 119, in cmd_run
   command.run(args)
 File "/home/alf/dev/public/projman/commands.py", line 80, in run
   self._run(args)
 File "/home/alf/dev/public/projman/commands.py", line 131, in _run
   schedule(self.project, self.config)
 File "/home/alf/dev/public/projman/scheduling/__init__.py", line 54, in schedule
   errors += scheduler.schedule(verbose=config.verbose, time=config.time)
 File "/home/alf/dev/public/projman/scheduling/dumb.py", line 92, in schedule
   activities.extend(self._process_node(leaf))
 File "/home/alf/dev/public/projman/scheduling/dumb.py", line 39, in _process_node
   for c_type, date in node.get_date_constraints():
ValueError: too many values to unpack
prioritynormal
typebug
done in0.17.0
closed by<not specified>