Hi Séverin and David,
Could it be possible for the language pack maintainer to have two AMOS usernames: one as a maintainer and another as a mere contributor ?
This way the maintainer would send all the work as any other contributor would do, but when he/she logs in as maintainer, could fast-track approve the work.
And there should be a #xxxxx number for all the work the maintainer_working_as_a_mere_contribuitor did.
It sounds cumbersome, but it might be a good way to keep a record of translations done in a needed hurry (too aften the case), so that the maintainer can later carefully slowly re-check and fix any human error (e.g, on a quiet weekend).
I reckon I have made some very silly typos in many strings in the few years I have maintained my language pack, but I had never thought about a way to double-check myself.