MKVToolNix 90.0 “Hanging On”

# Version 90.0 "Hanging On" 2025-02-08

## New features and enhancements

* MKVToolNix GUI: header editor: double-clicking on one of the three flag
  indicators ("Default track", "Forced display", "Enabled") for a track in the
  tree view will now toggle the corresponding flag. Implements #3773.

## Bug fixes

* mkvmerge: AAC parser: LOAS/LATM streams: fixed use of uninitialized data
  when the `StreamMuxConfig` element doesn't contain the `audioMuxVersion`
  element; version 0 must be assumed in such a case. The result was that
  sometimes certain valid AAC packets were dropped. Fix by Stefan Pöschel.
* mkvmerge: HEVC/H.265 parser: fixed calculation of picture order count
  calculation that was triggered under rare circumstances. Fixes #3775.
* mkvmerge: Matroska reader: enabled limits for how much data a single
  Matroksa reader instance might buffer when the muxing core looks for packets
  for specific tracks, avoiding huge memory consumption in cases where tracks
  have huge gaps between packets. This might happen when appending files
  containing forced-only subtitle tracks, for example. Fixes #3771.
* mkvmerge: TrueHD reader: increased the probe range for TrueHD sync frames
  from 128 KB to 512 KB to avoid mis-detection with certain files with a lot
  of data between sync frames. Fixes #3783.
* mkvmerge: MP4/QuickTime reader: fixed detection of Big Endian LPCM
  audio. Fixes #3788.

## Build system changes

* The bundled `fmt` library was updated to v11.1.2.
* added a new option to `configure` called `--disable-dbus` to disable looking
  for & using QtDBus even if it's present on the system. Default remains to
  probe for its existence. Patch by Anthony Ryan.