0.93.1: TIFF file thumbnail is drawn incorrectly when EXIF:Orientation == 7

[RobertNelson]

XnView: MP 0.93.1 - 64 bit
OS: Windows 64 bit

The Thumbnail is not rotated/mirrored correctly when EXIF:Orientation is set
to 7. Instead the thumbnail appears upside down. The preview is shown correctly.

To reproduce:
1. Open XnView
2. Select a directory containing a file with EXIF:Orientation set to 7.
3. Observe the thumbnail image.


Actual behaviour (bug): The thumbnail is upside down

Expected behaviour: The thumbnail is right side up

[xnview]

could you send me a file sample?