v0.1.3: start time honored when replaying the already-loaded track

QMediaPlayer.setSource() no-ops on an unchanged URL, so replaying the
track that was already the loaded source never re-fired LoadedMedia and
the armed _pending_start_ms was silently dropped — a freshly edited
start time appeared to save but playback began at 0:00. _load_current
now detects the unchanged source and stop()+seeks directly (a forced
clear+reload was tried and races the FFmpeg backend, snapping the seek
back to 0). previous()-restart likewise rewinds to the custom start
time instead of 0:00.

Verified live via an offscreen GUI harness: replay-while-playing,
replay-after-EndOfMedia, and cleared-start-time replay.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

TASKS.md

@@ -3,6 +3,26 @@
 Legend: `[ ]` todo · `[~]` in progress · `[x]` done.
 When a round closes, move its finished items to `tasks-done.md`.
 
+## Round 22 — start time honored on same-source replay (v0.1.3)
+
+Plan reference: `~/.claude/plans/could-you-look-into-generic-balloon.md`.
+Tests in `tests/test_round22.py`. Fix-only round → patch bump **0.1.3**.
+
+Background: editing a track's start time saved fine but replaying it still
+started at 0:00 whenever that track was already the loaded source — Qt's
+`QMediaPlayer.setSource()` no-ops on an unchanged URL, so the LoadedMedia
+status change that consumes the armed `_pending_start_ms` never re-fired.
+(A forced clear+reload was tried first and races the FFmpeg backend: the
+seek lands, then the pipeline restart snaps position back to 0.)
+
+- [x] `Player._load_current`: when the source URL is unchanged, skip
+      `setSource` entirely — the media is already loaded — and `stop()` +
+      seek straight to the armed start time. Verified live (offscreen GUI
+      harness): replay-while-playing, replay-after-EndOfMedia, and
+      cleared-start-time replay all land where they should.
+- [x] `Player.previous()`: the ">3 s in restarts the track" path now seeks
+      to the track's custom start time instead of 0:00.
+
 ## Round 21 — transport buttons fill their bubble (v0.1.2)
 
 Plan reference: `~/.claude/plans/tap-targets-on-the-snazzy-minsky.md`.