fix(mp): rewrite behaviors name/value #4257

packages/uni-mp-core/src/runtime/componentProps.ts

@@ -59,13 +59,17 @@ function initDefaultProps(
   if (options.behaviors) {
     // wx://form-field
     if (options.behaviors.includes('__GLOBAL__://form-field')) {
-      properties.name = {
-        type: null,
-        value: '',
+      if (!options.properties || !options.properties.name) {
+        properties.name = {
+          type: null,
+          value: '',
+        }
       }
-      properties.value = {
-        type: null,
-        value: '',
+      if (!options.properties || !options.properties.value) {
+        properties.value = {
+          type: null,
+          value: '',
+        }
       }
     }
   }