Refactor on Base* structure

packages/core/src/baseeditableholder/BaseEditableHolder.vue

@@ -21,7 +21,7 @@ export default {
         },
         invalid: {
             type: Boolean,
-            default: false
+            default: undefined
         },
         disabled: {
             type: Boolean,
@@ -80,7 +80,7 @@ export default {
             return isNotEmpty(this.d_value);
         },
         $invalid() {
-            return this.invalid || this.$pcForm?.states?.[this.$formName]?.invalid;
+            return this.invalid ?? this.$pcForm?.states?.[this.$formName]?.invalid;
         },
         $formName() {
             return this.formControl?.name || this.name || this.$attrs.name;

packages/core/src/baseinput/BaseInput.vue

@@ -28,7 +28,7 @@ export default {
     },
     computed: {
         $variant() {
-            return this.variant || this.$primevue.config.inputStyle || this.$primevue.config.inputVariant;
+            return this.variant ?? (this.$primevue.config.inputStyle || this.$primevue.config.inputVariant);
         },
         $fluid() {
             return this.fluid ?? !!this.$pcFluid;