When customizing the advanced search, a contribution to the extension point "contentViews" is generated to overwrite the default one. The problem is that it's not using the proper document type: "advanced_search" instead of "AdvancedSearch"
<extension target="org.nuxeo.ecm.platform.ui.web.ContentViewService" point="contentViews"> <contentView name="advanced_search"> <coreQueryPageProvider> <property name="coreSession">#{documentManager}</property> <whereClause docType="advanced_search">
Should be:
<extension target="org.nuxeo.ecm.platform.ui.web.ContentViewService" point="contentViews"> <contentView name="advanced_search"> <coreQueryPageProvider> <property name="coreSession">#{documentManager}</property> <whereClause docType="AdvancedSearch">