fix config save will have duplicated config

Author: pandadtdyy

packages/hydrooj/src/loader.ts

@@ -99,7 +99,7 @@ export class Loader extends Service {
         if (!schema) return Object.freeze({});
         const schemaRequest = configScope ? Schema.object({
             [configScope]: schema,
-        }) : schema;
+        }).description(configScope) : schema;
         await this.ctx.setting._tryMigrateConfig(schemaRequest);
         const res = this.ctx.setting.requestConfig(schemaRequest, dynamic);
         return configScope ? res[configScope] : res;

packages/hydrooj/src/settings.ts

@@ -152,6 +152,8 @@ export class SettingService extends Service {
     requestConfig<T, S>(s: Schema<T, S>, dynamic = true): S {
         this.ctx.effect(() => {
             logger.debug('Loading config', s);
+            const exist = this.settings.findIndex((v) => v.meta?.description === s.meta?.description);
+            if (exist !== -1) this.settings.splice(exist, 1);
             this.settings.push(s);
             this._applySchema();
             return () => {