[Bug]: Backspace from list with nested items deletes previous content

[fleon]

Affected Packages

extension-list-keymap

Version(s)

2.11.5

Bug Description

If I backspace from a list item that has nested list items, it deletes the content just before/above it. I can undo to revert the deletion.

Related to https://gitlab.com/gitlab-org/gitlab/-/issues/512875

1. Add some text.
2. Below that text, add two list items with some text.
3. Indent the 2nd list item.
4. Place your cursor at the start of the 1st list item.
5. Press Backspace to start deleting the previous content.
6. (You can press CMD+Z to undo)

Browser Used

Chrome

Code Example URL

No response

Expected Behavior

Pressing backspace before a list item containing a nested list should not delete the entire paragraph before it. It should just unindent the list item.

Additional Context (Optional)

No response

Dependency Updates

• Yes, I've updated all my dependencies.

[fleon]

I will set some time aside this week to take a deeper look, but it looks like the problem is in https://github.com/ueberdosis/tiptap/blob/develop/packages/extension-list-keymap/src/listHelpers/handleBackspace.ts#L24