调整表单加载草稿逻辑

@CONTROL/表单/CONTROL-BASE.vue.ftl

@@ -964,13 +964,15 @@ import schema from 'async-validator';
             }
 
             const data = response.data;
-            <#if de??>
-            if(data.${appde.getCodeName()?lower_case}){
-                Object.assign(this.context,{${appde.getCodeName()?lower_case}:data.${appde.getCodeName()?lower_case}})
-            }
-            </#if>
             this.resetDraftFormStates();
             this.onFormLoad(data,'loadDraft');
+            <#list ctrl.getPSDEFormItems() as formitem>
+            <#if formitem.getPSAppDEField?? && formitem.getPSAppDEField()??>
+            <#if !formitem.isHidden() && formitem.getPSAppDEField().isKeyField()>
+            this.data.${formitem.getName()} = null;
+            </#if>
+            </#if>
+            </#list>
             this.$emit('load', data);
             this.$nextTick(() => {
                 this.formState.next({ type: 'load', data: data });