server plugin koo can't be uninstalled

[jehan]

Tested with lp:openobject-server/5.0 and latest openobject-client-kde/5.0.

If you try to uninstall the koo addon you get:

Traceback (most recent call last):
  File "/usr/lib/openerp/instance/server-stable/5.0/bin/netsvc.py", line 240, in dispatch
    result = LocalService(service_name)(method, *params)
  File "/usr/lib/openerp/instance/server-stable/5.0/bin/netsvc.py", line 73, in __call__
    return getattr(self, method)(*params)
  File "/usr/lib/openerp/instance/server-stable/5.0/bin/service/web_services.py", line 639, in execute
    return self._execute(db, uid, wiz_id, datas, action, context)
  File "/usr/lib/openerp/instance/server-stable/5.0/bin/service/web_services.py", line 619, in _execute
    return wiz.execute(db, uid, self.wiz_datas[wiz_id], action, context)
  File "/usr/lib/openerp/instance/server-stable/5.0/bin/wizard/__init__.py", line 178, in execute
    res = self.execute_cr(cr, uid, data, state, context)
  File "/usr/lib/openerp/instance/server-stable/5.0/bin/wizard/__init__.py", line 74, in execute_cr
    action_res = action(self, cr, uid, data, context)
  File "/usr/lib/openerp/instance/openerp-server/bin/addons/base/module/wizard/wizard_module_upgrade.py", line 92, in _upgrade_module
    db, pool = pooler.restart_pool(cr.dbname, update_module=True)
  File "/usr/lib/openerp/instance/server-stable/5.0/bin/pooler.py", line 62, in restart_pool
    return get_db_and_pool(db_name, force_demo, status, update_module=update_module)
  File "/usr/lib/openerp/instance/server-stable/5.0/bin/pooler.py", line 40, in get_db_and_pool
    addons.load_modules(db, force_demo, status, update_module)
  File "/usr/lib/openerp/instance/server-stable/5.0/bin/addons/__init__.py", line 755, in load_modules
    pool.get(rmod).unlink(cr, uid, [rid])
AttributeError: 'NoneType' object has no attribute 'unlink'

To reproduce this:
- make a fresh openerp installation
- install koo addon
- uninstall koo addon

[Albert Cervera i Areny - http://www.NaN-tic.com (albert-nan)]

Given that uninstall support in openerp is considered (beta) well set this as wishlist. I don't even know if it's koo module fault.