Problem with InstantApps.showInstallPrompt and postInstallIntent

postInstallIntent lose bundle extras after installation.

```
val intent: Intent?
intent = Intent(Intent.ACTION_VIEW, Uri.parse("https://www.test.ru/activity/main/"))
intent.setPackage(context.packageName)
intent.addCategory(Intent.CATEGORY_BROWSABLE)
intent?.putExtra(EXTRA_FIRST, data1)
intent?.putExtra(EXTRA_SECOND, data2)
```

But when I try to get data from intent ` intent.extras` in installed app the bundle is empty.

What am I doing wrong or it's a problem of showInstallPrompt?

Start with the Intent construction shown in the issue and trace how showInstallPrompt delivers postInstallIntent into the installed app. Compare the extras before installation and when the app receives the intent; done means establishing whether the extras are expected to survive or documenting the confirmed cause.

Written by the indexing model from the issue text.