Preview in File -> Open window does not update

Preview in “File → Open” window does not update.

How to recreate:

  1. have a few pics in a folder (mine were all in .png format)
  2. change color palette in one of them
  3. close pic and confirm save
  4. click File → Open
    … and see that the preview of this pic did not update according to the changes made to it.

I have to close Aseprite to have the preview get updated.

Aseprite 1.2.35 x64
Windows 10 (x64, latest updates)