Integration items view duplicates workitems.

Workitem list page duplicates items when scrolled to bottom by amount of running integrations. 

steps to reproduce: 
open http://10.212.3.36:8080/coin/
scroll to bottom slowly to see last item and copy it and ctrl+f as whole eg. "yocto/meta-boot2qt: refs/builds/qtci/sumo/1549437639 → sumo [Integration] Passed"
compare whats above those workitems for amount of running items.