Fix #5326 修改在构建文件树时遇到重名文件夹导致读取失败的问题 (#5369)

Co-authored-by: Glavo <zjx001202@gmail.com>

HMCLCore/src/main/java/org/jackhuang/hmcl/util/tree/ArchiveFileTree.java

@@ -129,10 +129,10 @@ public abstract class ArchiveFileTree<R, E extends ArchiveEntry> implements Clos
         }
 
         if (entry.isDirectory()) {
-            if (dir.entry != null) {
-                throw new IOException("Duplicate entry: " + entry.getName());
-            }
+            if (dir.entry == null)
                 dir.entry = entry;
+            else if (!dir.entry.isDirectory())
+                throw new IOException("A file and a directory have the same name: " + entry.getName());
         } else {
             String fileName = path[path.length - 1];