Last line format override all lines in Copy & paste from Google Docs

[pablopla]

Steps for Reproduction

1. Visit https://v2.quilljs.com/standalone/full
2. Create a Google Docs document with two lines. First line with plain text and second line with bold text.
3. Copy & paste from Google Docs to Quill.

Google Docs document should have two lines:
aaa
bbb

Expected behavior:
First line should be plain text, second line should be bold.
aaa
bbb

Actual behavior:
Both lines are bold.
aaa
bbb

Platforms:
Chrome 121.0.6167.85 / Ubuntu 22.04

Version:
v2.0.0-beta.1