Notifications not issued when user is on Data Saver mode even if the app is whitelisted

• /e/ version: any
• Device model(s): star2lte starlte dream2lte dreamlte FP4 avicii
• Developer mode enabled: yes/no
• Device rooted: yes/no
• Trackers blocker enabled: yes/no

Summary

When Data saver is on, the user doesn't get some notifications until they open the app even if said app is whitelisted in the Data saver option.

The problem

Steps to reproduce

1. install a third party messaging app like Signal or Telegram
2. set an account
3. Set Data saver to on
4. start exchanging messages with friends

What is the current behavior?

Sometimes the notification for new messages are not issued right away or until the user opens the app. Even if the user whitelist the app in the Data saver option, notifications are not issued.

It's not systematic with all these apps even on the same phone (for instance I have the problem with Signal but it seems to me I do not have it with Telegram)

What is the expected correct behavior?

Notifications are issued right away when the app is whitelisted in the Data saver option

Technical informations

Relevant logs (adb logcat)

Relevant screenshots

Solutions

Workaround

Possible fixes