Code Block - adding two 2 lines will exit the Code Block

Thanks for reporting this — the video is helpful. To track this down, I need a couple of clarifications:

1. Steps to reproduce: When you say "adding two 2 lines," do you mean pressing Enter twice in a row while inside a code block, or pasting two lines of text? Does it happen every time, or only under specific conditions (e.g., at the end of the block, after certain characters)?
2. Expected behavior: Should those two new lines stay inside the code block, or should the second one legitimately exit it?

A screen recording is great — if you can also paste the exact text or keystrokes that trigger it, that'll speed up the fix.