Any incoming route with Call Flow Control as its destination appears as existing inbound DID routes when adding a new SIP extension

Just started using Call Flow Control on our new deployment and noticed a weird bug. When adding a new SIP extension, under "Assigned DID/CID" where it would normally list assigned inbound DID routes to an existing SIP extension, it lists any inbound DID routes that have a Call Flow Control Destination, even though I haven't actually created the extension yet. If I add another DID in Incoming Routes to use a call flow control destination, it too will show up under Assigned DIDs when creating a new SIP Extension.
Ive attached a screenshot of me starting to create a SIP extension, and those DID routes showing up.