4.6.3

Fixed

A remote ISO no longer recognizes the disc twice at startup (#76).

The 4.6.2 cache stopped the per-switch re-open, but the reporter still saw the disc open twice before playback began.

The probe demuxer opens the source with no explicit title (selectTitleID == nil) and caches the recognition under that key, while the rest of the engine references that same title by its resolved id (the default resolves to title index 0, and DiscTitle.id == index): background reloads and the subtitle side demuxer pass the concrete id, never nil. The side demuxer's first open therefore missed the probe's cache entry and re-ran the full UDF / .mpls parse, the second "disc tray" open before the first cue.

DiscReader.storeRecognition now aliases the entry under the resolved selected index when it differs from the requested id, so the nil-probe recognition is hit by the concrete-id lookup. Disc recognition runs once per session.

The subtitle side demuxer still attaches its own (probe-capped) demuxer for the bitmap-subtitle stream, which is decoded out-of-band from a separate context by design, but no longer re-recognizes the disc in front of it.

Full diff: 4.6.2...4.6.3