Fix access level of Model.autoFill()

src/db/Model.ts

@@ -87,7 +87,7 @@ export default abstract class Model {
      * Override this to automatically fill obvious missing data i.e. from relation or default value that are fetched
      * asynchronously.
      */
-    public async autoFill(): Promise<void> {
+    protected async autoFill(): Promise<void> {
     }
 
     protected async beforeSave(exists: boolean, connection: Connection): Promise<void> {