shift conflict when using tmux in WSL2 with mouse mode on

Windows Terminal version

1.24.10921.0

Windows build number

No response

Other Software

tmux 3.0a
wsl2

Steps to reproduce

A test file test.txt is prepare as the below

line 1
line 2

and print it to screen via cat test.txt.
Then copy with mouse under different setup:

windows terminal + WSL2

Copy with mouse select without shift and then right click, then paste here

line 1
line 2

** with shift pressed **

line 1                                                                                                                                                    line 2   

windows terminal + WSL2 + tmux mouse mode on

Have to copy with shift pressed

line 1                                                                                                                                                    line 2   

Expected Behavior

No response

Actual Behavior

When shift is pressed, the copy content become one line with long space. Is there a way to disable such behavior when shift is press?