Parsing UID:GID pairs incorrectly

[ProfDoof]

Hi, I'm using podlet which seems to have an upstream dependency on this library and it fails to parse my compose file that has

services:
  blah:
    user: 1001:1005

which should parse. I tried to poke around and see if I could get a vibe for where the error might be but the best guess I have is something in this logic here but the architecture is a bit beyond a 20 minute quick-dive. My best guess is simply that either there's something going wrong with the splitting and it's not being split before it attempts to parse, or there's something wrong somewhere else.

If there's anything I can do to help narrow down this bug, let me know.

[SinnySupernova]

It was implemented (issue #23, PR #28), both podlet and compose_spec_rs main branches have the feature, but the container published on ghcr doesn't. Building podlet image from source solved this for me