base: improve ir_default for _get_company_id

bzr revid: ced-ac9a616c3f789c5e622c24bf887e197c617789f1

bin/addons/base/ir/ir_default.py

@@ -43,7 +43,7 @@ class ir_default(osv.osv):
 
 	def _get_company_id(self, cr, uid, context={}):
 		res = self.pool.get('res.users').read(cr, uid, [uid], ['company_id'], context=context)
-		if res:
+		if res and res[0]['company_id']:
 			return res[0]['company_id'][0]
 		return False