Bug: Background color not preserved when pasting rows inside a table

[aldoprogrammer]

Lexical version: latest (tested on Lexical Playground)

Steps To Reproduce

1. Create a table in Lexical Playground.
2. Fill some cells with data.
3. Select a row (or multiple cells) and apply a background color.
4. Copy the row.
5. Paste the row inside the same table.

Demo

Link to code example

• Lexical Playground
• Reproducible directly by following the steps above in the editor UI.

The current behavior

• When pasting inside the same table, the background color is lost.
• When pasting outside the table, the background color is preserved.

The expected behavior

• Background color formatting should be preserved when pasting within the table, just like it works when pasting outside the table.

Impact of fix

• Medium severity: affects table editing workflows where styling is needed.
• Users who rely on background colors for row highlighting, spreadsheet-like tables, or visual organization would benefit.
• Happens consistently with any table row that has background color applied.