[IMP] core: do not log 'loading demo' for nothing

when there is no demo data available for the given module

closes odoo/odoo#83675

Signed-off-by: Victor Feyens (vfe) <vfe@odoo.com>

odoo/modules/loading.py

@@ -81,9 +81,10 @@ def load_demo(cr, package, idref, mode):
         return False
 
     try:
-        _logger.info("Module %s: loading demo", package.name)
-        with cr.savepoint(flush=False):
-            load_data(cr, idref, mode, kind='demo', package=package)
+        if package.data.get('demo') or package.data.get('demo_xml'):
+            _logger.info("Module %s: loading demo", package.name)
+            with cr.savepoint(flush=False):
+                load_data(cr, idref, mode, kind='demo', package=package)
         return True
     except Exception as e:
         # If we could not install demo data for this module