Pattern for protected apps can't be removed

• /e/ version: 0.9-2020062660259
• Device model: Xiaomi Mi4c
• When it started to occur: when set pattern to protect apps
• Reproducible with the last /e/ version: yes
• Reproducible with LineageOS: -

Summary

• The device is unusable
• The bug is the source of a data loss or a big waste of time
• The bug concerns a third-party application
• The bug concerns security
• The bug concerns privacy

The problem

Steps to reproduce

Go to Settings -> Privacy -> Protected apps and set pattern for unlocking a screen. Then in the same section try to totally remove pattern to take off protection of your apps

What is the current behavior?

I can only change a pattern. I can't remove pattern.

What is the expected correct behavior?

After setting current pattern there should be a button to remove the protection, totally

Technical information

Relevant logs (adb logcat)

Relevant screenshots Issue can't be easily shown on a screen shot

Solutions

Workaround

Remember the pattern or send an e-mail to recover your pattern once you forgot.

Possible fixes :-(