org.kuali.rice.core.api.exception.RiceIllegalArgumentException: principalName was blank
	at org.kuali.rice.kim.impl.identity.IdentityServiceImpl.incomingParamCheck(IdentityServiceImpl.java:1566)
	at org.kuali.rice.kim.impl.identity.IdentityServiceImpl.getEntityByPrincipalName(IdentityServiceImpl.java:125)
...
	at org.kuali.kra.common.notification.service.impl.KcNotificationServiceImpl.getRecipientEmailAddresses(KcNotificationServiceImpl.java:542)
	at org.kuali.kra.common.notification.service.impl.KcNotificationServiceImpl.sendEmailNotification(KcNotificationServiceImpl.java:524)
	at org.kuali.kra.common.notification.service.impl.KcNotificationServiceImpl.sendNotification(KcNotificationServiceImpl.java:184)
	at org.kuali.kra.common.notification.service.impl.KcNotificationServiceImpl.sendNotificationAndPersist(KcNotificationServiceImpl.java:630)
	at org.kuali.kra.coi.personfinancialentity.FinancialEntityAction.sendNotificationAndPersist(FinancialEntityAction.java:444)
	at org.kuali.kra.coi.personfinancialentity.FinancialEntityEditNewAction.submit(FinancialEntityEditNewAction.java:60)

Fixes https://github.com/rSmart/issues/issues/377#issuecomment-51721794