fix sync package

bindings/javascript/sync/packages/wasm/promise-vite-dev-hack.ts

@@ -83,6 +83,7 @@ class Database extends DatabasePromise {
      * connect database and initialize it in case of clean start
      */
     override async connect() {
+        if (this.connected) { return; }
         if (!this.memory) {
             this.#worker = await init();
             await Promise.all([
@@ -94,6 +95,7 @@ class Database extends DatabasePromise {
             ]);
         }
         await run(this.#runOpts, this.#io, this.#engine, this.#engine.connect());
+        this.connected = true;
     }
     /**
      * pull new changes from the remote database