I use the backspace key in commenting to strike thru text. Sometimes when I do this, the strike-thru shows up as a blue line and it is connected to a previous insertion. I can get it to work if I click on the strikethru text icon on the toolbar, but I'd rather it work when I use the keyboard shortcut.

In the attached file, you can see where two sets of text are connected to the same insertion, making it hard to tell where I want text replaced.