fix: BI-52258 修复复制数据连接时的bug

src/modules/pages/maintain/forms/form.model.ts

@@ -31,6 +31,7 @@ export class MaintainFormModel extends Model<{
                     return;
                 }
                 this.model.pageIndex = PAGE_INDEX.CONNECTION;
+                this.model.isCopy = false;
             });
         },
         updateConnection: (name: string, data: Connection) => {

src/modules/pages/maintain/forms/form.ts

@@ -37,7 +37,6 @@ export class MaintainForm extends BI.Widget {
                 form.connectionId = this.connectionName;
                 this.store.addConnection(form);
             }
-            this.store.setIsCopy(false);
         },
         testEvent: () => {
             const value = this.form.getSubmitValue();