Auto Logout setting not saved

[phsc84]

RainLoop version, browser, OS:
the-djmaze8, Chrome 85.0.4183.102 (64-bit), Windows 10

Expected behavior and actual behavior:
Go to Settings > Security and set the parameter "Auto Logout" to "Never". Logout from your account and re-login. Go again to Settings > Security and check the parameter "Auto Logout". You will see, that it is re-set to the default value "30 Minutes".

Steps to reproduce the problem:
see description above

Logs or screenshots:
n/a

[phsc84]

Works perfectly in SnappyMail 2.0.0-rc1.