Wrong view region after zooming

[teplit]

The view region after zooming is shifted wrongly in the center of the image.

Steps to reproduce the problem:

1. Open a RAW file and click on the 1:1 icon or press z
2. When RawTherapee is ready, drag the image with the hand tool to center the view region away from the center
3. While RawTherapee is processing the new region click two times on the + icon or press two times +
4. The view region is again in the center of the image instead of in the chosen place.

To reproduce the problem you may need a slow computer, 4K monitor or something else in order to make RawTherapee sluggish.

Tested on Windows 10 (1909) with RawTherapee 5.8.

[Thanatomanic]

Confirmed, also on my rather fast computer

[mikkovedru]

I confirm this on the latest 5.8-3128 build.

This is present even on my fast computer (Linux Mint 20.3 Cinnamon) and without the "3. While RawTherapee is processing the new region" requirement.