Avif support , where are my metadata ?

[Barthoum]

Hello,

I tried to play with the Avif format (even if conversion and decoding is ..... long) and speed 0

I set the quantizers to 0-15 and the result is clearly similar to jpegmini but with a file smaller

But the result don't have any metadata (except creation date)even if the copy metadata option is selected, is it normal?

[xnview]

Currently avif output doesn't support metadata