Environment

Windows build number: [[Version 10.0.18363.720]]
Windows Terminal version (if applicable):  0.10.761.0

Any other software?

Steps to reproduce

There are two bugs of Alt+Enter behavior.
Text Disappear && Prompt Duplicate
a. open terminal with WSL
b. type: ls -la or do whatever will print content over a page
c. mouse scroll up to the top
d. type Alt+Enter to Fullscreen
e. text outside orignal windows do not render.
d. scroll down to the bottom: type Alt+Enter several times
f. prompt duplicate several times.

I used zsh with the right side Prompt

Actual behavior

Expected behavior

We need to scroll the terminal to force a re-rendering.