'Hack :  when going from the pipeline, creating a stage with a sales team in
context should not create a stage for the current sales team only'

@api.model
def default_get(self, fields):

    ctx = dict(self.env.context)
    if (ctx.get('default_team_id') and (not ctx.get('crm_team_mono'))):
        ctx.pop('default_team_id')
    return super(Stage, self.with_context(ctx)).default_get(fields)
