refactor: code

Author: alexander-akait

lib/WebpackOptionsApply.js

@@ -432,6 +432,10 @@ class WebpackOptionsApply extends OptionsApply {
 			const RemoveEmptyChunksPlugin = require("./optimize/RemoveEmptyChunksPlugin");
 			new RemoveEmptyChunksPlugin().apply(compiler);
 		}
+		if (options.optimization.mergeDuplicateChunks) {
+			const MergeDuplicateChunksPlugin = require("./optimize/MergeDuplicateChunksPlugin");
+			new MergeDuplicateChunksPlugin().apply(compiler);
+		}
 		if (options.optimization.flagIncludedChunks) {
 			const FlagIncludedChunksPlugin = require("./optimize/FlagIncludedChunksPlugin");
 			new FlagIncludedChunksPlugin().apply(compiler);
@@ -470,10 +474,6 @@ class WebpackOptionsApply extends OptionsApply {
 			const SplitChunksPlugin = require("./optimize/SplitChunksPlugin");
 			new SplitChunksPlugin(options.optimization.splitChunks).apply(compiler);
 		}
-		if (options.optimization.mergeDuplicateChunks) {
-			const MergeDuplicateChunksPlugin = require("./optimize/MergeDuplicateChunksPlugin");
-			new MergeDuplicateChunksPlugin().apply(compiler);
-		}
 		if (options.optimization.runtimeChunk) {
 			const RuntimeChunkPlugin = require("./optimize/RuntimeChunkPlugin");
 			new RuntimeChunkPlugin(