Whenever you use the same login to connect to SVN source control in the editor, the editor's SVN plugin is unable to differentiate between two working copies of the same repo. Any checkouts made in one of the working copies will be shown as also checked out in the other working copy.
This seems like odd workflow for me so I'm not sure if this would be feasible to fix but it does seem like unintended behavior.
This also occurred in 4.13
Head over to the existing Questions & Answers thread and let us know what's up.