Stacktrace when working with xmas tree document in CM

[INFO] [talledLocalContainer] 25.04.2019 12:28:22 WARN http-nio-8080-exec-7 [AbstractBaseOrderableValve.handleComponentExceptions:306] Component exception(s) found in page request, 'Request{ method='GET', scheme='http', host='localhost:8080', requestURI='/site/_cmsinternal/xmas-tree', queryString='null'}'.
[INFO] [talledLocalContainer] 25.04.2019 12:28:22 WARN http-nio-8080-exec-7 [DefaultPageErrorHandler.logWarningsForEachComponentExceptions:51] Component exception on com.onehippo.cms.components.XmasTreeDocumentComponent : java.lang.ClassCastException: org.hippoecm.hst.content.beans.standard.HippoCompound$Listitem$oDnzpi36 cannot be cast to org.onehippo.forge.selection.hst.contentbean.ValueListItem