fix: exercise list missing in History when single session auto-expands

CHANGELOG.md

@@ -2,6 +2,11 @@
 
 All notable changes to Workout Lens are documented here.
 
+## [1.2.6] — 2026-05-13
+
+### Fixed
+- **Exercise list missing in History on mobile** — when a day with a single session was loaded, `loadSession` auto-expanded it by setting `expandedIds` but never called `initSessionEdit`. The body map rendered correctly (reads directly from raw session data) but the exercise list stayed hidden because `edit.exercises` was `undefined`. Fixed by calling `initSessionEdit` alongside `setExpandedIds` in the single-session auto-expand branch.
+
 ## [1.2.5] — 2026-05-13
 
 ### Fixed

app/src/components/History.jsx

@@ -275,7 +275,12 @@ export default function History({ initialDate }) {
         return new Date(ta) - new Date(tb);
       });
       setDaySessions(results);
-      setExpandedIds(results.length === 1 ? new Set([results[0].id]) : new Set());
+      if (results.length === 1) {
+        setExpandedIds(new Set([results[0].id]));
+        initSessionEdit(results[0]);
+      } else {
+        setExpandedIds(new Set());
+      }
     } catch (err) {
       logDevError("History/loadSession", err);
     } finally {