Keep file extensions on "edit"

[essembeh]

Hi

When editing files, tig creates a temporary blob in /tmp to open it with my editor vim.
Very cool feature, but when I edit python files for example, temp file is /tmp/tigblob.SANFvO.unknown.
The .py file extension is replaced with .unknown and vim does not activate Python syntax.

Maybe it would be possible to keep the original file extension while creating the temporary filename?

Thanks