fix extracting error when only a single directory and no files

Author: clown

Applications/Ice/Main/Sources/Presenters/Extract/ExtractFacade.cs

@@ -181,7 +181,7 @@ private void Invoke(ArchiveReader src, int index, ExtractDirectory dir)
         Retry(() => src.Save(Temp, item, GetProgress()));
 
         var dest = Io.Combine(Temp, item.FullName);
-        if (FormatFactory.From(dest) != Format.Tar) Transfer(item);
+        if (Io.IsDirectory(dest) || FormatFactory.From(dest) != Format.Tar) Transfer(item);
         else
         {
             using var e = new ArchiveReader(dest, Password, src.Options);

Tests/Ice/Examples/SigleDirectoryNoFiles.zip

@@ -359,6 +359,13 @@ public static IEnumerable<TestCaseData> TestCases { get
             }
         );
 
+        yield return new(
+            @"RootDirectory\SigleDirectoryNoFiles",
+            new[] { "SigleDirectoryNoFiles.zip" },
+            GetPathArgs("RootDirectory"),
+            new ExtractionSettingValue { SaveMethod = SaveMethod.CreateSmart }
+        );
+
         yield return new(
             @"Tar\TarSample",
             new[] { "Sample.tar" },