Opera: problems with splitting table cells

[Jakub Ś]

This issue may be related to #8072.

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Scenario 1

1. Open replacebycode sample but clear editor contents
2. Under sample text insert a table with First Row as Headers and default values for Rows & Columns.
3. Enter "c" & "d" as the values for the cells in the first row.
4. Split the last cell (with "d") in the first row vertically. Reslut: Notice that new cell appears under "a" not under "d" like in other browsers

Source code is the same as in other browsers:

         <thead>
                <tr>
			<th rowspan="2" scope="col">
				a</th>
			<th scope="col">
				d</th>
		</tr>
		<tr>
			<th scope="col">
				&nbsp;</th>
		</tr>
	</thead>

NOTE: You don't have to create header as first row to get the effect. All you have to do is filling table cells with some values

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Scenario 2

1. Open replacebycode sample but this time DON'T clear editor contents
2. Under sample text insert a table with First Row as Headers and default values for Rows & Columns.
3. Enter "c" & "d" as the values for the cells in the first row.
4. Split the last cell (with "d") in the first row vertically.

Result: Cursor jumps up to paragraph and cells don't get slitted. I have managed to reproduce it from CKEditor 3.4.2 - since this is the version where CKEditor menu has started working again on right-click.