fix(amis-editor): 编辑器ScaffoldModal切换步骤Form数据丢失问题

packages/amis-editor-core/src/component/ScaffoldModal.tsx

@@ -138,6 +138,8 @@ export class ScaffoldModal extends React.Component<SubEditorProps> {
     const form = this.amisScope?.getComponents()[0].props.store;
     const step = store.scaffoldFormStep + 1;
     form.setValueByName('__step', step);
+    /** 切换步骤导致schema重新渲染，Form数据域中的数据会丢失 */
+    store.updateScaffoldData(form?.data, true);
 
     // 控制按钮
     store.setScaffoldStep(step);
@@ -150,6 +152,7 @@ export class ScaffoldModal extends React.Component<SubEditorProps> {
     const form = this.amisScope?.getComponents()[0].props.store;
     const step = store.scaffoldFormStep - 1;
     form.setValueByName('__step', step);
+    store.updateScaffoldData(form?.data, true);
 
     // 控制按钮
     store.setScaffoldStep(step);

packages/amis-editor-core/src/store/editor.ts

@@ -1695,6 +1695,20 @@ export const MainStore = types
         self.scaffoldError = msg;
       },
 
+      updateScaffoldData(value: any, replace?: boolean) {
+        if (self.scaffoldForm && value) {
+          self.scaffoldForm = {
+            ...self.scaffoldForm,
+            value: replace
+              ? value
+              : {
+                  ...self.scaffoldForm.value,
+                  ...value
+                }
+          };
+        }
+      },
+
       openPopOverForm(context: PopOverFormContext) {
         self.popOverForm = context;
       },