Undo reverse entire table content instead of single cell

[sculpt0r]

Type of report

Bug

Provide detailed reproduction steps (if any)

1. Create a standard table
2. Write some text in a single cell
3. Jump to the next cell with the 'tab' key
4. Write text to each cell
5. Use undo button

Expected result

What is the expected result of the above steps?
Text from the last cell is removed. All other cells contain text.
There is undo step for each cell.

Actual result

What is the actual result of the above steps?
There is a single undo step that reverses the entire input from the table.

Other details

• Browser: -
• OS: -
• CKEditor version: PROD (pre-released) 4.16.2
• Installed CKEditor plugins: table

[jacekbogdanski]

Could be probably fixed similarly like

ckeditor4/plugins/undo/plugin.js

Lines 1125 to 1131 in 90e680e

	// Click should create a snapshot if needed, but shouldn't cause change event.
	// Don't pass onNavigationKey directly as a listener because it accepts one argument which
	// will conflict with evt passed to listener.
	// https://dev.ckeditor.com/ticket/12324 comment:4
	editable.attachListener( editable.isInline() ? editable : editor.document.getDocumentElement(), 'click', function() {
	that.onNavigationKey();
	}, null, null, 999 );