Cannot change URL in endpoint dialogs

[arjanz]

When I try to change this URL, it gets updated after a few second to the old value

[Kriekkop]

This happens when the entered url fails to connect and as a fallback other known urls are being tried. Because of data binding in the material component the value is automatically changed. What we can do is to try to check if the input field is active and prevent the value from being changed.