I can't delete a dependency.
As you can see on attachement "Entities", I have 2 (two) related entities, "PAGAR" and "Cliente". For some reason they have 2 (two) relationships between them, both of them are on attachment "Attributes_marked". The first, "Clientes" (marked in green ) was created by myself and is necessary for my project, so its dependencies are alright as seen on attachment "dependencies_OK".
My problem starts with the second one, "idCliente", marked in red. Whenever I try to delete it, the software states I cannot because it has dependencies, but when I check them it's very inconclusive.
I don't remember creating the "idCliente" dependency, and as you can see on attachment "dependencies_PROBLEM", I didn't use it on any Form, Rule, Expression or anywhere else whithin the project.
How can I delete it and furthermore, how can I prevent this from happening again?