<p:dataScroller> reloading automatically on entity edits - jsf

Question

I have a p:datascroller configured to display a list of entities and lazy loading them upon clicking the more button.
<h:form id="investigationOperationsForm">
<p:dataScroller
value="#{investigationManagerBackingBean.lazyLoadedInvestigationOperations}"
var="investigationOperation" chunkSize="9" lazy="true"
rowIndexVar="test">
<f:facet name="header">
Scroll down to load investigations
</f:facet>
<h:panelGrid columns="2" style="width:100%"
columnClasses="logo,detail">
<p:commandLink oncomplete="PF('investigationDialogW').show()"
update="investigationEditorForm" immediate="true">
<f:setPropertyActionListener value="#{investigationOperation}"
target="#{investigationManagerBackingBean.selection}" />
<p:graphicImage alt="Investigation Operation"
url="/images/common/investigation-operation.png" />
</p:commandLink>
<!-- h:outputText value="#{investigationOperation.name}" /-->
<p:outputPanel id="pnl">
<h:panelGrid columns="2" cellpadding="5">
<h:outputText value="Name:" />
<h:outputText value="#{investigationOperation.name}"
style="font-weight: bold" />
<h:outputText value="Description:" />
<h:outputText value="#{investigationOperation.shortDescription}"
style="font-weight: bold" />
</h:panelGrid>
<p:draggable for="pnl" />
</p:outputPanel>
</h:panelGrid>
<f:facet name="loader">
<p:outputPanel
visible="#{investigationManagerBackingBean.lazyLoadedInvestigationOperations.rowCount gt 10}"
rendered="#{investigationManagerBackingBean.lazyLoadedInvestigationOperations.rowCount gt 10}">
<p:commandLink value="More" />
</p:outputPanel>
</f:facet>
</p:dataScroller>
</h:form>
In addition, I have a dialog that pops up when the p:commandLink oncomplete method is executed where I can update the value of the current selection and persist the changes.
<p:dialog id="investigationDialog"
header="#{msg['inv-manager.invDialog.header.title']}"
widgetVar="investigationDialogW" minWidth="400" minHeight="400"
resizable="false" position="center center" modal="true">
<p:panel id="investigationEditorPanel">
<h:form id="investigationEditorForm">
<h:panelGrid columns="2" cellpadding="5">
<h:outputLabel for="name"
value="#{msg['inv-manager.invDialog.nameFieldLabel']}" />
<p:inplace id="nameInplaceEditor" editor="true">
<p:inputText
value="#{investigationManagerBackingBean.selection.name}"
id="name" required="true" immediate="true"
label="#{msg['inv-manager.invDialog.nameFieldInputLabel']}" />
</p:inplace>
<h:outputLabel for="shortDescription"
value="#{msg['inv-manager.invDialog.shortDescriptionFieldLabel']}" />
<p:inplace id="shortDescriptionInplaceEditor" editor="true">
<p:inputText
value="#{investigationManagerBackingBean.selection.shortDescription}"
id="shortDescription" required="true" immediate="true"
label="#{msg['inv-manager.invDialog.shortDescriptionFieldInputLabel']}" />
</p:inplace>
<h:outputLabel for="description"
value="#{msg['inv-manager.invDialog.descriptionFieldLabel']}" />
<p:inputTextarea id="description" required="false"
label="#{msg['inv-manager.invDialog.descriptionFieldInputLabel']}"
immediate="true"
value="#{investigationManagerBackingBean.selection.description}" />
<p:commandButton id="okButton"
value="#{msg['inv-manager.invDialog.okButton']}" type="submit"
partialSubmit="true" process="investigationEditorForm"
action="#{investigationManagerBackingBean.createOrUpdate()}"
onclick="dlg.hide();" />
</h:panelGrid>
</h:form>
</p:panel>
</p:dialog>
The backing bean is configured to be #ViewScoped and everything works as defined. However, upon update the values of the p:datascroller are reset and the load method of the lazy loading model is executed and the datascroller is repopulated with new values from the database.
I have no reference to the datascroller or its containing form in the p:dialog and am wondering why the datascroller is being updated automagically? What am I missing in the equation. Have I overlooked something or something specific to the p:datascroller model that I need to consider when following this approach?
Look forward to the expertise of the community in resolving this issue.
Many thanks in advance :)