Built-in Escalation service Job sends notification issue updated even though set parameter to DO_NOT_DISPATCH and sendMail false.

Steps to Reproduce

Provide a detailed step-by-step process to reproduce the problem.

1. Create an Escalation service Job to update the field value.
2. Configure the Job as follow and let the Action field empty:
   
3. Add additional actions to update the issue and set the parameter to DO_NOT_DISPATCH and sendMail = false. Example:

   import com.atlassian.jira.event.type.EventDispatchOption
   import java.sql.Timestamp
   import com.atlassian.jira.issue.Issue
   import com.atlassian.jira.component.ComponentAccessor
   
   def cfNextControlDate = ComponentAccessor.customFieldManager.getCustomFieldObject(12900)
   
   def pattern = "yyyy-MM-dd"
   def nextControlDate = (new Date()).toTimestamp()
   
   issue.setCustomFieldValue(cfNextControlDate,nextControlDate)
   ComponentAccessor.issueManager.updateIssue(currentUser,issue,EventDispatchOption.DO_NOT_DISPATCH, false)
   

Expected Behaviour

Issue is updated, and an email notification is not sent.

Actual Behaviour

Issue is updated, and an email notification is sent.

Additional Info

• It can only replicate when the Action field is empty.