Patch Management Solution

I clicked on Computers Requiring Restart for the first time the other day, as I know we have servers that didn't restart after recent updates.  I have lots of entries, some are several years old, and I know they have since been restarted.  Is there a way to remove these entries?  I removed all the entries for one server by going to the actions menu and deleting them.  Afterward, communication with the agent wasn't working correctly, so I ended up removing the agent and redeploying and putting it back in it's patch window.  Any advice on cleaning this dashboard? 

This Flag can be removed by using the attached query - please see http://www.symantec.com/docs/TECH216688 for a workaround.

insert into Evt_Reboot

select Guid, DATEADD(minute, -5, getdate()), 0, 'True', getdate()

from vComputer

-- where Name = 'COMPUTER_NAME' -- reset reboot state for specific computer

I didn't realize this would completely clear that report.  Is that the intended behavior of the query?  I checked the attached article and that didn't apply.