Atom feed response not getting refreshed

Summary

Response of atom feed is retained until it is replaced by new data

Content

Hi,

My scheduled OIC integration has HCM adapter which is enabled for 'Subscribe to Atom Feeds' option. It is subscribed for employee new hire feed. The integration is scheduled for every 4 mins. For every schedule the current timestamp is captured and passed as parameter for Atom Feed. 

Scenario:

In my first 3 runs I get zero response from atom feed. Consider in my 4th run my atom feed captures a new record (person created between 3rd and 4th run timestamp) say employee #124. Again in my 7th run the feed captures another new employee (#125). So my integration should do nothing in the runs except 4 and 7.