fix(editor): 修复部分场景下获取不到region的情况 issue#10354

Author: chenwenhao

packages/amis-core/src/renderers/Options.tsx

@@ -434,7 +434,8 @@ export function registerOptionsControl(config: OptionsConfig) {
             formItem.loadOptionsFromDataScope(
               props.source as string,
               props.data,
-              this.changeOptionValue
+              this.changeOptionValue,
+              true
             );
 
             this.normalizeValue();

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

@@ -866,7 +866,12 @@ export const FormItemStore = StoreNode.named('FormItemStore')
     function loadOptionsFromDataScope(
       source: string,
       ctx: Record<string, any>,
-      onChange?: (value: any) => void
+      onChange?: (
+        value: any,
+        submitOnChange?: boolean,
+        changeImmediately?: boolean
+      ) => void,
+      clearValue?: boolean
     ) {
       let options: any[] = resolveVariableAndFilter(source, ctx, '| raw');
 
@@ -892,6 +897,13 @@ export const FormItemStore = StoreNode.named('FormItemStore')
 
       setOptions(options, onChange, ctx);
 
+      // source从数据域获取，同时发生变化时，需要清空当前表单项
+      if (clearValue && !self.selectFirst) {
+        self.selectedOptions.some((item: any) => item.__unmatched) &&
+          onChange &&
+          onChange('', false, true);
+      }
+
       return options;
     }