Duplicates with Jira Integration

How does Miro avoid creation of duplicates with the 2 way push between Miro-Jira (i.e., duplicate objects from Miro to Jira and also Jira to Miro)? Perhaps @Shubangi Sunder has some more info or a video explaining how creating duplicates are avoided in either app (JIRA or Miro)?

Thanks.