同时装 dsh-free-search 与 dsh-web-search-free：fetchProvider 报 not registered

Domain: dsh · Evidence E1 — Maintainer reviewed

problemdshfree

Summary

同时安装 dsh-free-search 和 dsh-web-search-free 两个搜索插件后，设置 fetchProvider: web-search-free 时报：