collection extension and pdfsam-console → render error

[maximeB]

My apologies, I'm the guilty here, but I noticed a bug when using the collection extension and pdfsam: the render simply crashes.

The problem is that the executed command is something like:
pdfsam-console -f /path/tmp.rl -f toc.pdf -o final.pdf -overwrite

BUT pdfsam does not recognise .rl as a pdf format (which is quite understandable) AND does not return an error so mwlib.rl "thinks" it worked, which is false and final.pdf does not exist, which causes an error afterwards.

I do not understand why when I run mw-render the temporary file is named with the right extension and when the server is used the extension is .rl
Is this really useful ? or could it be replaced by .pdf ?

[maximeB]

After a bit of research it seams that the Collection extension actually asks for a .rl file (quite odd) therefore the problem comes from Collection. Mwlib does exactly what it's been asked to :)
Note: Maybe we should move this thread to collection extension's issues, but I don't know how. Sorry.