RichText paste breaks with multiple pastes

[glendaviesnz]

Description

When trying to paste into a rich text block like Paragraph, if multiple pastes are done in a row, or sometimes when content is deleted and new content pasted, a console error is thrown and the content of second paste does not appear in the editor.

Step-by-step reproduction instructions

• In the editor try and paste some text into a paragraph block, and then paste the same text again
• The text does not appear in the editor and a console error is thrown

Screenshots or screen recording (optional)

WordPress information

• WordPress version: 5.7.2
• Gutenberg version: latest trunk
• Are all plugins except Gutenberg deactivated? Yes

Device information

• Device: Desktop
• Operating system: OSX
• Browser: Chrome 91

[KokkieH]

@glendaviesnz On WordPress.com's end we've had a report of this via Twitter that mentions pasting with AppleScript also doesn't work. Do you think it might be the same issue, or something different? I'm afraid testing this is beyond my skillset - no idea how AppleScript works :D

[WunderBart]

Howdy! 👋 This seems to be partially fixed. Testing with #32527 cherry-picked, I can only paste plain text into a new list item, but cannot paste if the text was copied from any other block. Here are the steps to reproduce the issue I'm seeing:

• Write something in a paragraph block
• Select & copy what you just wrote
• Hit enter and create a list block
• Paste & see that nothing got pasted and no error is being thrown in the JS console
• Now copy some other text, not from the editor canvas this time - can be the current page's URL
• Paste and see that it's all good.

Seems to me that the List block is not accepting content from other blocks? Would that be the case here? Here's a recording of those steps:

Screen.Recording.2021-06-29.at.17.58.16.mov

Should we reopen this issue or create another one, @glendaviesnz? cc @fullofcaffeine @ockham

[ockham]

Should we reopen this issue or create another one [...]?

Let's create a new one -- the issue you found seems a bit different from what's described in this issue's original description 🙂

[fullofcaffeine]

Should we reopen this issue or create another one [...]?

Let's create a new one -- the issue you found seems a bit different from what's described in this issue's original description slightly_smiling_face

Created the issue here: #33078.