edit view with authentication takes longer than cached instance exists

[MartijnR]

@larryweya writes:

We've noticed an issue when editing an instance. When we retrieve and edit url form Enketo and we access it, we get the Enketo login screen, after logging in, it always throws this exception but works fine on subsequent requests (after logging in).

[MartijnR]

I need to probably extend the timeout, or do something specific to forms requiring authentication