From 362a4488485633c10f76d743fd123c99c3eee682 Mon Sep 17 00:00:00 2001
From: Julien Calixte <julien.calixte@theodo.com>
Date: Wed, 17 Jun 2026 09:58:03 +0200
Subject: [PATCH] docs(model): clarify the switchTo last-good reset comment

---
 src/composables/useMacroplan.ts | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/composables/useMacroplan.ts b/src/composables/useMacroplan.ts
index b91fea9..f0e5027 100644
--- a/src/composables/useMacroplan.ts
+++ b/src/composables/useMacroplan.ts
@@ -119,8 +119,9 @@ export function useMacroplan() {
   // Persist the whole library on any change (best-effort, like the old autosave).
   watch(lib, (l) => save(l), { deep: true })
 
-  // Switching plans drops the prior render so a broken target shows its own
-  // error/empty state, not the previous plan's grid.
+  // Reset last-good to the target plan's current parse (null if it's broken),
+  // so switching to a broken plan shows its own error/empty state rather than
+  // the previous plan's grid.
   function switchTo(id: string): void {
     lib.value.activeId = id
     lastGood.value = parsed.value.plan