unable to insert new line in prompt box in MacOS Tahoe basic Terminal

[phazei]

Description

I tried shift-enter, it just submits.

Yes there is #1505, but it's closed. So unless it's re-opened, this isn't a duplicate of any existing issue.

I use MacOS Tahoe 26.0.1

In plain Terminal it doesn't work.

It does work in my iTerm2 and Oh My Zsh.