check_for_updates() and _resolve_repo_dir() were preferring
$HERMES_HOME/hermes-agent/ over Path(__file__).parent.parent.resolve()
when looking for a .git checkout. For profiles created with
--clone-all, $HERMES_HOME/hermes-agent/ points to a stale copy
with a frozen HEAD, causing persistent "N commits behind" banners
that never resolved.
Flip the resolution order: prefer the running code's location first,
fall back to $HERMES_HOME/hermes-agent/ only when the live checkout
doesn't have a .git (system-wide pip installs, distro packages).
The embedded-rev branch (HERMES_REVISION env var, set by nix builds)
is unaffected — it uses git ls-remote against upstream, never reads
the local checkout's HEAD.
Based on PR #21728 by @fahdad
fahdad
cca2869d78