Incorrect display a list of recent alerts in JON Dashboard

Issue

• In portlet "recent alerts" added to my desktop, when the number of results exceeds the number in the filter lines begin to repeat several times.
  for example, in setting specifies a maximum of 5 lines - all have 13 lines. Portlet displays the first 5 lines, then again the same first 5 rows and once the first 3 rows. The result is 13 lines with doubles . However If you specify a maximum of 100 lines, we see 13 unique values .