No it will not disable Database updates, these are set through Antivirus, Scanner settings.
Sorry no solution has been found.
Form what I see you found a bug.
If you have the time and energy please consider filing a bug report in the Bug Reports - CIS
board following the format as described in FORMAT & GUIDE - just COPY/PASTE it!
Reporting of bugs is strictly moderated to make sure Comodo gets clear bug reports. So, please make sure you closely follow protocol. That way your report will certainly be seen by Comodo staff.