Use applyOptionsCallback

Author: Kocal

lib/config-generator.js

@@ -531,9 +531,10 @@ class ConfigGenerator {
             ignored: /node_modules/
         };
 
-        this.webpackConfig.watchOptionsConfigurationCallback(watchOptions);
-
-        return watchOptions;
+        return applyOptionsCallback(
+            this.webpackConfig.watchOptionsConfigurationCallback,
+            watchOptions
+        );
     }
 
     buildDevServerConfig() {