Results: Minor fix.

src/Model/Results/Results.py

@@ -115,8 +115,11 @@ class Results(SQLSubModel):
           )
         """)
 
+        if ext != "":
             return True
 
+        return cls._create_submodel(execute)
+
     @classmethod
     def _db_update(cls, execute, version, data=None):
         major, minor, release = version.strip().split(".")