Typing over selected text in a table cell removes the entire table

Provide detailed reproduction steps (if any)

A minimal reproduction is available in TinyMCE Fiddle:

Fiddle: (https://fiddle.tiny.cloud/uI1UMM0Ht0/2)

1. Open the TinyMCE Fiddle.
2. The editor contains a table with one row and three columns.
3. In the first cell, enter the text "Test".
4. Select/highlight the text "Test".
5. Type a character, for example "s", to replace the selected text.
6. Observe that the entire table is removed instead of only replacing the selected text in the cell.

✔️ Expected result

When text inside the first table cell is selected and a character is typed to replace the selected text, the entire table is unexpectedly removed.

For example, selecting "Test" in the first cell and typing "s" causes the whole three-column table to disappear. The typed "s" is then inserted as normal paragraph text in the editor.

Only the selected text inside the cell should be replaced; the table itself should remain intact.

❌ Actual result

When text inside the first table cell is selected and a character is typed to replace the selected text, the entire table is unexpectedly removed.

For example, selecting "Test" in the first cell and typing "s" causes the whole three-column table to disappear. The typed "s" is then inserted as normal paragraph text in the editor.

Only the selected text inside the cell should be replaced; the table itself should remain intact..

Video shows the issue

A screen recording demonstrating the issue is attached.

❓ Possible solution

No suggested solution at this time.

Other details

• Browser: Google Chrome
• OS: Windows
• TinyMCE version: 8
• First affected version: Unknown
• Worked in version: Unknown