How to reproduce : 

1/ On exhaustive content, declare following view : 

<cms:view name="details">
 <cms:group> 
 <cms:label i18n="false">Label View Mag</cms:label> 
 <cms:description i18n="false">Description de la view Mag</cms:description> 
 <cms:attribute-ref name="title"/>
 <cms:attribute-ref name="owns">
   <cms:view name="details"/>
 </cms:attribute-ref>
 </cms:group>
 </cms:view>

2/ When launching CMS, following error is diplayed : 
Caused by: org.apache.avalon.framework.configuration.ConfigurationException: The view 'details' does not exist in content type 'org.ametys.test.Content.exhaustif' referenced by the attribute named 'owns'. @file:///D:/Dev/Ametys-1/templates/web/master/webapp/cms/plugins/exhaustif/content-types/exhaustif.xml:898:39Caused by: org.apache.avalon.framework.configuration.ConfigurationException: The view 'details' does not exist in content type 'org.ametys.test.Content.exhaustif' referenced by the attribute named 'owns'. @file:///D:/Dev/Ametys-1/templates/web/master/webapp/cms/plugins/exhaustif/content-types/exhaustif.xml:898:39 at org.ametys.cms.contenttype.ContentTypeViewParser._parseContentAttributeViewItem(ContentTypeViewParser.java:249) at org.ametys.cms.contenttype.ContentTypeViewParser._parseModelViewItem(ContentTypeViewParser.java:206) at org.ametys.cms.contenttype.ContentTypeViewParser._parseSimpleViewItemGroup(ContentTypeViewParser.java:384) at org.ametys.cms.contenttype.ContentTypeViewParser._fillViewItems(ContentTypeViewParser.java:157) at org.ametys.cms.contenttype.ContentTypeViewParser.parseView(ContentTypeViewParser.java:128) at org.ametys.cms.contenttype.DefaultContentType._parseViews(DefaultContentType.java:1140) ... 213 more