hideTabBar not working in nested scenes

### Version 4.0.3
Tell us which versions you are using:

- react-native-router-flux v4.0.3
- react v16.4.2
- react-native v0.55.4

### Expected behaviour

hideTabBar should hide the tab bar in scenes.

### Actual behaviour

hideTabBar doesn't hide the tab bar.

### Steps to reproduce
For non-obvious bugs, please fork this component, modify Example project to reproduce your issue and include link here.
1. Create
2. Inside Stack create
3. Inside Tabs create
4. Inside Stack create

### Reproducible Demo

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I have seen that there is a closed issue on this topic but it didn't help, and 4.0.2 changelog included this as fixed bug. That is why I opened another issue mentioning v4.0.3
And in the API documentation the has no hideTabBar prop.