fix: can't use setInitialize of LazyCell multi-times

denops/skkeleton/util.ts

@@ -64,6 +64,7 @@ export class LazyCell<T> {
 
   setInitializer(initializer: () => Promise<T>) {
     this.lazyInitializer = initializer;
+    this.initialized = false;
   }
 }
 

denops/skkeleton/util_test.ts

@@ -0,0 +1,18 @@
+import { assertEquals } from "./deps/std/assert.ts";
+import { LazyCell } from "./util.ts";
+
+Deno.test({
+  name: "LazyCell",
+  async fn(t) {
+    await t.step({
+      name: "can use setInitialize multi-times",
+      async fn() {
+        const cell = new LazyCell(() => 0);
+        cell.setInitializer(() => Promise.resolve(1));
+        assertEquals(await cell.get(), 1);
+        cell.setInitializer(() => Promise.resolve(2));
+        assertEquals(await cell.get(), 2);
+      },
+    });
+  },
+});