fix: remove resource field in cloned rules (fix #1254)

Author: yyx990803

lib/plugin.js

@@ -166,6 +166,11 @@ function cloneRule (rule, normalizedRule) {
   delete res.loaders
   delete res.options
 
+  // these are included in the normalized resource() check
+  delete res.resource
+  delete res.include
+  delete res.exclude
+
   if (rule.oneOf) {
     res.oneOf = rule.oneOf.map((r, i) => {
       return cloneRule(r, normalizedRule.oneOf[i])