A Plan became default only when its Scenario was flagged default or the
property had no Plan yet. Scenarios are created is_default=False, so in
practice only the first-ever Plan was ever promoted — re-modelling a
property appended a new Plan but left the default frozen on the first run,
so a re-model never surfaced on the FE (property 792168 kept its 2026-07-22
scenario-1328 default through three same-scenario re-runs).
Also promote when the re-run models the SAME scenario that currently owns
the property's default, so a re-run refreshes the shown Plan in place (the
save demotes the stale one). A re-run of a different scenario still does not
hijack the default. New PlanRepository.default_plan_scenario_by_property
surfaces each property's default scenario for the decision.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
0ca8ca31a0