fix: crash with contenthash

Author: alexander-akait

src/index.js

@@ -821,8 +821,7 @@ class MiniCssExtractPlugin {
               return referencedChunk.canBeInitial()
                 ? this.options.filename
                 : this.options.chunkFilename;
-            },
-            true
+            }
           )
         );
 

test/TestCases.test.js

@@ -114,7 +114,7 @@ describe("TestCases", () => {
           Object.assign(
             config,
             {
-              mode: "none",
+              mode: config.mode || "none",
               context: directoryForCase,
             },
             config,

test/cases/contenthash-1/expected/main.fbb750fd312778403036.css

@@ -0,0 +1,2 @@
+
+

test/cases/contenthash-1/index.js

@@ -0,0 +1,3 @@
+/* eslint-disable */
+async () => await import("./lib.js");
+import "./style.css";

test/cases/contenthash-1/lib.js

@@ -0,0 +1,25 @@
+import Self from "../../../src";
+
+module.exports = {
+  entry: "./index.js",
+  mode: "production",
+  cache: {
+    type: "filesystem",
+  },
+  module: {
+    rules: [
+      {
+        test: /\.css$/,
+        use: [Self.loader, "css-loader"],
+      },
+    ],
+  },
+  output: {
+    filename: "[name].[contenthash].js",
+  },
+  plugins: [
+    new Self({
+      filename: "[name].[contenthash].css",
+    }),
+  ],
+};