Steps to reproduce:

1.Open the editor
2.Create a numbered list with 4 items.For example:

1. item 1
2. item 2
3. item 3
4. item 4

3.Now place the cursor at the end of item 2 and press enter
4.Add a new item 3( it gets added properly)
5.Now place the cursor just before item 1 and press enter to move it to the next line
6.Type a new item1 in first line
7.Delete the new item

Observed Result:

The order (1.) does not get deleted.In read mode the list appears like this:

3. item 1
4. item 2
5. new item 3
6. new item 4
7. item 3
8. item 4

After saving, in read mode the list appears as follows:

1.item 1
2.item 2
3.new item 3
4.new item 4
5.item 3
6.item 4

Version: unspecified
Severity: normal