Fix create notification for group of findings (#10433)

* Fix create notification execution for group of findings

* Create notification for comment for group of findings if findings exist

* Update notification title when a new comment is added for group of findings

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Co-authored-by: Camilo Cota <ccota@redhat.com>

Author: ccronca

dojo/jira_link/views.py

@@ -241,8 +241,10 @@ def check_for_and_create_comment(parsed_json):
         findings = [jissue.finding]
         create_notification(event='jira_comment', title=f'JIRA incoming comment - {jissue.finding}', finding=jissue.finding, url=reverse("view_finding", args=(jissue.finding.id,)), icon='check')
     elif jissue.finding_group:
-        findings = [jissue.finding_group.findings.all()]
-        create_notification(event='jira_comment', title=f'JIRA incoming comment - {jissue.finding}', finding=jissue.finding, url=reverse("view_finding_group", args=(jissue.finding_group.id,)), icon='check')
+        findings = jissue.finding_group.findings.all()
+        first_finding_group = findings.first()
+        if first_finding_group:
+            create_notification(event='jira_comment', title=f'JIRA incoming comment - {jissue.finding_group}', finding=first_finding_group, url=reverse("view_finding_group", args=(jissue.finding_group.id,)), icon='check')
     elif jissue.engagement:
         return webhook_responser_handler("debug", "Comment for engagement ignored")
     else: