Impacted versions: 11.0

Steps to reproduce: Uninstall pos_sale

Current behavior: Sale --> Reporting --> All Channels Sales Order
![](https://image.prntscr.com/image/tk6hMEBIRDiX_8NoC0p94Q.png)

Expected behavior: Report should be there

Video/Screenshot link (optional):


odoo/modules/registry.py
""" Check whether the registry has changed, and performs all necessary
        operations to update the registry. Return an up-to-date registry.
        """
        if not odoo.multi_process:
            return self
        with closing(self.cursor()) as cr:
            cr.execute(""" SELECT base_registry_signaling.last_value,
                                  base_cache_signaling.last_value
                           FROM base_registry_signaling, base_cache_signaling""")
            r, c = cr.fetchone()
            _logger.debug("Multiprocess signaling check: [Registry - %s -> %s] [Cache - %s -> %s]",
                          self.registry_sequence, r, self.cache_sequence, c)
            
            if self.registry_sequence != r:
                _logger.info("Reloading the model registry after database signaling.")
                self = Registry.new(self.db_name)
            
            elif self.cache_sequence != c:
                _logger.info("Invalidating all model caches after database signaling.")
                self.clear_caches()
                self.cache_invalidated = False
            self.registry_sequence = r
            self.cache_sequence = c
        return self
    def signal_changes(self):