fix(xispeak): JInput清空输入框时change事件不触发，修复emit顺序避免查询使用旧值

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/components/Form/src/jeecg/components/JInput.vue

@@ -1,5 +1,5 @@
 <template>
-  <a-input v-bind="getBindValue" v-model:value="showText" @input="backValue"></a-input>
+  <a-input v-bind="getBindValue" v-model:value="showText" @input="backValue" @change="backValue"></a-input>
 </template>
 
 <script lang="ts">
@@ -23,6 +23,7 @@
       const attrs = useAttrs();
       //表单值
       const showText = ref('');
+      let lastText = '';
       // update-begin--author:liaozhiyang---date:20231026---for：【issues/803】JIput updateSchema不生效
       //绑定属性
       const getBindValue = computed(() => {
@@ -79,7 +80,7 @@
        * 返回值
        */
       function backValue(e) {
-        let text = e?.target?.value ?? '';
+        let text = typeof e === 'string' ? e : (e?.target?.value ?? '');
         if (text && !!props.trim) {
           text = text.trim();
         }
@@ -98,8 +99,10 @@
             break;
           default:
         }
-        emit('change', text);
+        if (text === lastText) return;
+        lastText = text;
         emit('update:value', text);
+        emit('change', text);
       }
 
       return { showText, attrs, getBindValue, backValue };