[Bug 47514] New: AviUtl: Can' t add a file to the ExEdit dialog after the first drop.

https://bugs.winehq.org/show_bug.cgi?id=47514

Bug ID: 47514
           Summary: AviUtl: Can't add a file to the ExEdit dialog after
                    the first drop.
           Product: Wine
           Version: 4.12.1
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: shell32
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: Ubuntu

AviUtl is a Japanese AVI file editing tool. When a user drop a file to the
ExEdit dialog, it doesn't accept after the first time.

How to reproduce:
1. Download aviutl_plus_20120619.zip from
http://spring-fragrance.mints.ne.jp/aviutl/
2. Unzip it.
3. Launch aviutil.exe in Japanese locale, i.e. LANG=ja_JP.UTF-8 wine aviutl.exe
4. Choose [設定]-[拡張編集の設定] (Settings-ExEdit Settings), then the window titled
拡張設定 (ExEdit) will be shown.
5. Drag and drop a media file (*.avi/*.jpg/*.png/*.wav) to the window. New
project dialog is shown.
6. Clieck [OK].
7. After the click, an object setting window (e.g. 画像ファイル[標準描画]) is shown and
the object bar is added to the right of the Layer 1 label in the ExEdit window.
8. Close the object setting window with the right upper [X] button.
9. Drag and drop a media file to the window, again.

Expected behavior:
* An object setting window for the file is shown, and
* New object bar is added below the existing object bar(s) in the ExEdit
window.

Actual behavior:
* Nothing happens.