Podman - duplicate metrics for /machine.slice/... containers

[heapdavid]

We're seeing duplicate metrics on podman for any containers that have an id starting /machine.slice/... - there is a single slash appended to the end of one id, e.g.:

container_start_time_seconds{id="/machine.slice/libpod-7c55eaef8b05ee98b08901ab7c01c171871d9bff0777941b3fdfbb4da20092aa.scope",image="[redacted]",name="[redacted]"} 1.715944154e+09
container_start_time_seconds{id="/machine.slice/libpod-7c55eaef8b05ee98b08901ab7c01c171871d9bff0777941b3fdfbb4da20092aa.scope/",image="[redacted]",name="[redacted]"} 1.715944154e+09

We're using cAdvisor 0.49.1 with Podman 4.3.1 on Debian 12/Bookworm

We're not seeing the issue with any other containers