Crash with image copied from Gimp

[eltos]

Crash with image copied from Gimp

To Reproduce

1. Open Gimp, create new image
2. Ctrl+A, Ctrl+C
3. Try to paste into file

Error message

System.ArgumentException: An item with the same key has already been added.
   at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource)
   at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
   at PasteIntoFile.ClipboardContents.FromClipboard() in D:\a\PasteIntoFile\PasteIntoFile\PasteIntoFile\ClipboardContents.cs:line 847
   at PasteIntoFile.Dialog.readClipboard() in D:\a\PasteIntoFile\PasteIntoFile\PasteIntoFile\Dialog.cs:line 260
   at PasteIntoFile.Dialog.ClipboardChanged(Object sender, ClipboardChangedEventArgs e) in D:\a\PasteIntoFile\PasteIntoFile\PasteIntoFile\Dialog.cs:line 289
   at WK.Libraries.SharpClipboardNS.SharpClipboard.Invoke(Object content, ContentTypes type, SourceApplication source)
   at WK.Libraries.SharpClipboardNS.Views.ClipboardHandle.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

Environment

• App version: 5.5
• OS: Win10