Bug#974768: handbrake: Saving custom presets in custom category is broken

[Alban Browaeys <alban.browaeys@gmail.com>]

You can close this bug report as I can reproduce when I installed
stretch handbrake_1.2.2+ds1-1_amd64.deb with its required dependencies
from strech (libdvdread4_6.0.1-1, libx265-165_2.9-4, libx264-
155_0.155.2917+git0a84d98-2).
This even with bookworm libgtk-3-0 3.24.35-2 and all other dependencies
untouched.

And with only change being upgrading handbrake 1.5.1+ds1-3
(bookworm and sid) and handbrake 1.3.1+ds1-2+b3 (bullseye stable) the
issue is fixed.

Best Regards,
Alban