Found a problem in the self.param method.

[surtich]

The self.param do not properly retrieves the values ​​passed to the Screen when it is resvisited with a differents values. Surprisingly recovery values ​​from the parameter received in the awake method works correctly.

Here there is a working example.

This is the sequence to reproduce the error:

• Navigate to "Send value1". Parameter is retrieved correctly with both ways.
• Cllick on 'back'.
• Navigate to "Send value2". Parameter value is not updated when the self.param method is used.

[surtich]

I have found that this does not happen when navigating using the iris.navigate method.