[Android Toolbar Feature Request] Add ability to move line up/down

About desktop version... (Joplin, 3.3.5)
Still not active in the RTE...
In MD editor : strange behabiour !!!

Original position:

I move up the line number four...


=> On the left column, the line move but the number doesn't change.

I continue to move up the same line top first line position.

On the right column at some point new numbers apears !!!

In the RTE: