Bug: Odd behaviour with $getRoot().getTextContent() when copying and pasting it is stripping new lines.

[OrderAndCh4oS]

When copying and pasting content in the rich text editor, hitting return causes the last piece of pasted text to strip all new lines.

Lexical version: ^0.7.4

Steps To Reproduce

1. console.log($getRoot().getTextContent()) in an `onChange handler.
2. Type some text with a couple of line breaks.
3. Copy the text with the line breaks and paste it underneath.
4. Hit return, and you should see the output has stripped line breaks from the logged content.

Link to code example: Example Project

The current behavior

Lines are being concatenated when reading $getRoot().getTextContent()

The expected behavior

Text should maintain line breaks when reading $getRoot().getTextContent()

Screen.Recording.2022-12-20.at.16.33.51.mov