Incorrect/unwanted URI encoding of MPD <baseURL> path separator characters

[vectronic]

Using 3.4.0 and 3.4.2 on Linux and MacOS:

packager-osx-arm64 "in=/tmp/colima/transcode-9fd806c6-1065-49ed-96f5-260658b089b9/audio_00_lang=_name=_default=false.mp4,stream=audio,output=/Users/nick/Temp/mpd/audio/stream-0/stream-0.mp4,dash_label=stream-0,dash_roles=main" "in=/tmp/colima/transcode-9fd806c6-1065-49ed-96f5-260658b089b9/video_resolution=1080p_bitRate=1000kbps_range=sdr.mp4,stream=video,output=/Users/nick/Temp/mpd/video/video.mp4" --segment_duration 4 --fragment_duration 4 --generate_static_live_mpd --mpd_output /Users/nick/Temp/mpd/manifest.mpd

I believe this is a correct invocation but it produces an MPD file which contains:

<BaseURL>audio%2Fstream-0%2Fstream-0.mp4</BaseURL>

and:

<BaseURL>video%2Fvideo.mp4</BaseURL>

I believe these should actually be:

<BaseURL>audio/stream-0/stream-0.mp4</BaseURL>

and:

<BaseURL>video/video.mp4</BaseURL>

This used to work as I expect in 2.6.1.

Has something changed with needing to specify --base_urls arguments now which would give me a better result?