Hello everybody i would like to set the Assignee from a user picker custom field see code Below but nothing hapens
import com.atlassian.jira.component.ComponentAccessor
import com.atlassian.jira.issue.CustomFieldManager
import com.atlassian.jira.user.ApplicationUser
import com.atlassian.jira.user.util.UserManager
def cField=ComponentAccessor.customFieldManager.getCustomFieldObject("customfield_10401")
def cFValue = issue.getCustomFieldValue(cField) as ApplicationUser
issue.setAssignee(cFValue)