[Whyred]Random reboot when battery is under 10% and battery saver mode is on

[Whyred]Random reboot when battery is under 10% and battery saver mode is on
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Random reboot when battery is under 10% and battery saver mode is on, MK90.0-whyred-201911292032-NIGHTLYScreenshot_20191130-145018
On my Redmi Note 5 Pro[Whyred] / Indian Variant

How does it happen. Does it shows a “Powering off…” dialog, or just suddenly turn black then showing the boot animation?

It happens all of a sudden, doesn’t show reboot

But everything keeps working for a few seconds like the notification LED like when you reboot and everything turn off slowly one by one