navigate to same screen animation not work

when i navigate from screen to another using
```
this.props.navigation.push('Post', {
item: this.state.related[0],
})
```
the animation work fine but if the screen is "_Post_ " i want to push anouther Post using the same code with deffrent params de the navigation work fine but without animation

Start by reproducing navigation.push('Post') from one Post screen to another with different parameters, then compare it with navigation from another screen. Confirm the expected shared-element animation behavior and verify that pushing the second Post still animates.

Written by the indexing model from the issue text.