--end=999:00:00 causes the audio not to play

[rr-]

mpv version and platform

mpv 0.26.0-15-gbbfd9b5a29 (C) 2000-2017 mpv/MPlayer/mplayer2 projects
 built on Sun Jul 23 22:16:53 CEST 2017
ffmpeg library versions:
   libavutil       55.58.100
   libavcodec      57.89.100
   libavformat     57.71.100
   libswscale      4.6.100
   libavfilter     6.82.100
   libswresample   2.7.100
ffmpeg version: 3.3.2

Reproduction steps

mpv --no-config test.mkv --end=999:00:00

Expected behavior

Audio works

Actual behavior

Audio is muted

If I reduce the time to something saner, say, 2:00:00, it works even if this time exceeds the file duration.

My use case as to why I'm setting this property to such a value:

1. I'm playing a file through libmpv
2. I want to play some ranges in it (think A-B loops that play once)
3. I achieve that through seeking, setting options/end property and unpausing the playback
4. At the same time I prevent the file from unloading after reaching the options/end value by using --keep-open
5. Sometimes I just want to unpause the file without imposing any ending points. Since I can't seem to be able to set the options/end property to an empty string or NULL, I set it to some deliberately high value.

Log file

https://0x0.st/DO-.txt

Sample files

Can provide if asked to