o-nikolas opened a new pull request, #73224:
URL: https://github.com/apache/airflow/pull/73224
A team-scoped plugin's macros were reachable from every task's templates, so
any team could call macros written to talk to another team's systems.
The worker decides this from a new ``multi_team`` flag on the run context
rather than from its own config, which is not guaranteed to match the
scheduler's (misconfigured or intentional attempt to read macros from other
teams): reading it as disabled while it is in fact enabled would drop scoping
and apply a team's macros everywhere. The existing ``team_name`` cannot carry
that signal, being ``None`` both for a teamless task and for every task when
multi-team is off, so a plugin declaring a team would otherwise lose its macros
in single-team deployments.
Scoping is applied at attribute access rather than when macros are loaded,
because the loader mutates a process-wide module and a worker process can serve
tasks from more than one team.
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