Backlink, Cmd +Z does not work if you deleted the backlink

Say I have a node called "Column".

If I have a node N that has "[[Column]]" in it's body, then Node N will show up in the Backlinks of "Column".

If I edit node N where it shows up in the Backlinks, and I accidentally delete any part of 
"[[Column]]", pressing "cmd + z" does not rescue Node N from being removed from the Backlinks of "Column".