[Steps]
1. Create a Writer doc, Type "1" and save.
2. "Files" -> "Versions...", press "Save New Version" button on the "Versions of
xxxx" dialog. Then type "1" and press OK button on "Insert Version Comment"
dialog. Press Close button on the "Versions of xxxx" dialog.
3. Type "2" in Writer doc, and save.
4. "Files" -> "Versions...", press "Save New Version" button on the "Versions of
xxxx" dialog. Then type "2" and press OK button on "Insert Version Comment" dialog.
5. Double-click the second saved version, whose Comments is "2", and press "Open
Read-Only" button on the popup dialog. 
6. Close the dup Writer doc which is opend as read-only. Back to the original
doc, "File" -> "Versions...", select the first saved version, whose Comments is
"1", press "Delete" button on the "Versions of xxxx" dialog.
7. Do step 5 once more.

[Result]
1. In step 5, the opend Read-Only doc has "12" in it.
2. In step 7, the opend Read-Only doc has "1" in it.

[Expectation]
In step 7, the opend Read-Only doc has "12" in it. Which means the content of
version won't change after delete some internal version(s) before it.