"Regroup Rhythms" function not grouping correctly for syncopated notes across downbeats

Steps to reproduce:
1. Create score with any time signature (example is in 4/4)
2. Set time signature properties to what they are in "time properties.png"
3. Write melody with 8th note that goes from "a" of beat 1 going into downbeat of beat 2, like in measure 13 of "Midnight_Rendezvous.mscz"
4. Click "Tools -> Regroup Rhythms"
5. Musescore will group the tied notes as they appear in "actual.png", not "desired.png" as expected based on time signature properties.

I have reproduced this in the latest nightly build: OS: Windows 10 (10.0), Arch.: x86_64, MuseScore version (64-bit): 3.4.0.9738, revision: fceeba5
Form post: https://musescore.org/en/node/300300