Android Q: Permissions maintaining state after uninstall

I am having an app which is targeting android 27 API. I am testing this app from playstore on device Android Q which work managed device. Steps i followed on device Android Q having build build 6-

1. Installed app and allowed all the permissions(additional permission also which are custom permissions).
2. Uninstalled app from device.
3. Installed again app from playstore and found that app is asking custom permission only instead no permission.

Is it the expected behavior? Anyone know how this is?

from Android Q: Permissions maintaining state after uninstall