Copy/pasting a link from plain text causes autolinking to not work

[annezazu]

Description

If you paste some text and a link from plain text into Gutenberg and then try to apply the link with a copy/paste onto the text itself, it fails and instead just replaces the text.

Step-by-step reproduction instructions

1. Write some text with a link in plain text.
2. Copy and paste it into a new post.
3. Copy the link you added and paste it over the text.
4. Notice it doesn't link and instead overwrites the text.

Screenshots, screen recording, code snippet

pasting.fail.mov

Environment info

• WP 6.4.2
• GB 17.3
• TT4

Please confirm that you have searched existing issues in the repo.

Yes

Please confirm that you have tested with all plugins deactivated except Gutenberg.

Yes

[annezazu]

@ellatrix might be of interest to you!

[youknowriad]

I've tracked this down to a regression introduced here https://github.com/WordPress/gutenberg/pull/54301/files#r1439029813

[ellatrix]

The regression is caused by a change in order in #55195, which moved the linking transform after the isInternal check.