[Users] How to save all attachments from all emails in a folder?

[Removed GDPR]

> That looks like you're hitting the shell command length limit
> ("getconf ARG_MAX" to see the exact limit), since this action seems
> to try doing it all in one command.

I suppose that is due to how claws handles the action command, no?
Can you suggest an improvement so that no limits are hit and that only
the attachments are extracted (i.e. without those mm.* files)?