primefaces p:commandLink oncomplete attribute referencing non-existent ID was messing up table filter and sort functions

i had this primefaces delete-icon code in a table row:
<p:commandLink id="deletelink" title="#{msg['label.delete']}"
    action="#{ta_mappingObject.setCurrentItemAndPanelToShow(agreement, 'deleteTA')}"
    rendered="#{!ta_mappingObject.createFromRequestDetails and userMenuBean.canEditAgreement()}"
    oncomplete="PF('confDeleteAgreement').show();">
    <h:graphicImage value="/images/icons/delete.gif" style="border:0" />
</p:commandLink>

and stuff on the page like filtering and sorting wasn't working, so i figured out that because that link was referencing a dialog ID that didn't exist, it was messing up the whole page, so i changed it to this:
<p:commandLink id="deletelink" title="#{msg['label.delete']}"
    action="#{ta_mappingObject.setCurrentItemAndPanelToShow(agreement, 'deleteTA')}"
    rendered="#{!ta_mappingObject.createFromRequestDetails and userMenuBean.canEditAgreement()}"
    oncomplete="PF('andIdThatExists').show();">
    <h:graphicImage value="/images/icons/delete.gif" style="border:0" />
</p:commandLink>


and everything started working again.