Calendar settings lost after each reboot

REPRODUCIBILITY (% or how often): after every reboot
BUILD ID = OS VERSION (Settings > About product): 4.2.0.19 (and maybe before)
HARDWARE (XA2, X10, X10 II, …): X10 II
UI LANGUAGE: DE (but I think that does have no impact to the bug)
REGRESSION: (compared to previous public release: Yes, No, ?): It’s not that easy to roll back, but I think I saw this problem already with the stable 4.1

DESCRIPTION:

I switch off some calenders and after the next reboot they reappear.

PRECONDITIONS:

Add an exchange account with multiple calenders.

STEPS TO REPRODUCE:

  1. Open the calendar app
  2. Select “Manage calendars” (or similar, in German its called “Kalender verwalten”)
  3. Disable some calendars and go back
  4. The disabled calendars disappear
  5. Reboot the device
  6. The disabled calendars are back again

EXPECTED RESULT:

Disabled calendars should not be displayed no matter if I reboot my device or not.

ACTUAL RESULT:

Disabled calendars are shown again and enabled in the settings after reboot.

ADDITIONAL INFORMATION:

(Please ALWAYS attach relevant data such as logs, screenshots, etc…)

I faced the same in 4.1 and persists in 4.2 also.