Nautlius does not support WebP thumbnail previews?

[Launchpad]

I was trying to use Google's WebP image format and installed both libwebp and
libwebp-dev.

Nautlius doesn't support this filetype for showing thumbnails? Now it says that
these files are 'RIFF-audio' filetypes.

Bastien Nocera posted the following here: https://bugs.freedesktop.org/show_bug.cgi?id=41155

" See http://cgit.freedesktop.org/xdg/shared-mime-info/tree/HACKING#n31 for how
to make requests about adding new formats. "

But I don't know how that should be done?

Thanks!

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Sergey "Shnatsel" Davidoff (shnatsel)]

Created attachment 67697
test file from WebP source code tree

Google's WebP image format is incorrectly recognized as an audio file.

test.webp:
 name: application/octet-stream
 data: audio/x-riff
 file: audio/x-riff

http://en.wikipedia.org/wiki/WebP

[Sergey "Shnatsel" Davidoff (shnatsel)]

This was originally reported at https://bugs.launchpad.net/ubuntu/+source/shared-mime-info/+bug/896707

[Pino Toscano (pinotree)]

*** This bug has been marked as a duplicate of bug 41155 ***

[JsquaredZ (jsquaredz)]

I dont see duplication between these bugs. Is this a typo?