Export: Original and preview out of sync

[helmut]

In the Export dialog whenever refreshing the image (manually or automatically) the original image and preview get out of sync: The preview is repositioned to 0,0 whereas the original image isn't.

To reproduce:
1. Open an image
2. Choose "File > Export"
3. Zoom the image and its preview a bit.
4. Scroll the image and its preview (horizontally and/or vertically)
5. Select "Refresh" to refresh the preview
-> The preview is re-positioned and thus gets out of sync with the original image.

XnView 1.90.2

[xnview]

In the Export dialog whenever refreshing the image (manually or automatically) the original image and preview get out of sync: The preview is repositioned to 0,0 whereas the original image isn't.

To reproduce:
1. Open an image
2. Choose "File > Export"
3. Zoom the image and its preview a bit.
4. Scroll the image and its preview (horizontally and/or vertically)
5. Select "Refresh" to refresh the preview
-> The preview is re-positioned and thus gets out of sync with the original image.

XnView 1.90.2

Can't reproduce with 1.90.3, so i think that it's fixed