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Area

admin/ui

Describe the bug

Since keycloak 24 the Look around window configuration option in the OTP policies (Authentication ⟶ Policies ⟶ OTP policy) cannot be configured to 0. That property is the extra time periods (TOTP) or counts (HOTP) the server will take into account just in case the generator and server are out of sync. So the value 0 makes sense (no extra time windows for TOTP and no extra counts for HOTP).

The configuration for OTP is from 0 to any max number with default 1 (here). So 0 should be allowed.

Version

25.0.2

Regression

[ ] The issue is a regression

Expected behavior

Value 0 should be allowed.

Actual behavior

When you set 0 it converts to default 1.

How to Reproduce?

Just go to Authentication ⟶ Policies ⟶ OTP policy in your realm. The value for the look around window is 1 by default. Click the minus buttom, it's still 1 and not 0.

Anything else?

No response