KRACOEUS-7431 added fields

The Jira requested more fields be added to the Medusa page, this tries to do that.  I tried to add proposal personnel information into the proposal medusa section without success.  Notice Proposal-MedusaSection-PropDevProposalPersonsSummary.  I have tried a number of iterations to get it to work, without success.  When I un-comment the part where I add it to Proposal-MedusaSection-PropDevSummary I get the following error.  Any ideas on how to do it?

java.lang.ClassCastException: org.kuali.rice.krad.uif.container.NodePrototype cannot be cast to org.kuali.rice.krad.uif.component.Ordered
at org.kuali.rice.krad.uif.util.ComponentUtils.sort(ComponentUtils.java:839)
at org.kuali.rice.krad.uif.container.ContainerBase.sortItems(ContainerBase.java:190)


The code as is works, and does NOT display personnel information.
If we need an explanatory comment here, lets do it in English and not XML to be clear it's not orphaned code.