JIRA function in google sheets fetching multiple values for sprint field

[Srirama Ravikanth Divakarla]

I am trying to fetch issues in a particular sprint using SPRINT NAME or SPRINT ID in Google sheets and below is the query along with sample output.

I get records with matching sprint ID/name but also issues with additional sprint names (1st record)

Question: How do I avoid getting multiple sprint names in the output? (Yes, the issues have multiple sprints tagged and its not a good practice...)

I just want the output where in, only sprint is 234 or issues with multiple sprints tagged but sprint 234 top most sprint. 

=JIRA(CONCATENATE("Sprint =234 AND project=PRJ" ), "issueKey,Sprint, summary, ", 0, 30)

XXX-XXXX      PRJ-S5;PRJ-S4           Test1

XXX-XXXX      PRJ-S4                         Test2