Expired connection still locked if option unticked

In doing some testing as part of restructuring how we use Remote Desktop Manager in our workplace, I was testing the "expire" option against a RDP connection (though it is likely to happen for any other connection type with this option).

It is all good and well if a connection expires (one cannot use the connection), but if you untick the "Expire" tickbox, the connection still remains expired (and highlighted orange), and the expired message appears.
Only if you tick the box again (if unticked), change the date to either today or in the future, then untick it will the connection become available for use again (ie. not expired).