fix: 改成和bi同样的逻辑

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

@@ -210,13 +210,9 @@ export class MaintainForm extends BI.Widget {
     }
 
     private getConnectionName(name = BI.i18nText('Dec-Dcm_Data_Connections')) {
-        const defaultName = name.replace(/\d+$/, '');
+        const connections = this.model.connections.filter(item => item.connectionName.startsWith(name));
-        const connections = this.model.connections.filter(item => item.connectionName.startsWith(defaultName));
-        if (connections.length === 0) {
-            return name;
-        }
         
-        return BI.Func.createDistinctName(connections.map(item => item.connectionName), defaultName);
+        return BI.Func.createDistinctName(connections.map(item => item.connectionName), name);
     }
 
     private testConnection() {