Saving InCopy files, it is automatically adding a dash to the name when saving as and replacing

Hello! 

I am running into an issue where I am trying to save over and replace an InCopy file with the same name, but every time I do it adds a dash at the end of the name and thus changes the link. I for sure am hitting yes when it asks if i want to replace when I am trying to save over, so I am not sure why it is changing the name and keeping both files.