Data table column sort by uid:major_version,uid:minor_version only works one direction

  <nuxeo-data-table-column name="[[i18n('label.ui.version')]]"
                                         field="uid:major_version"
                                         sort-by="uid:major_version,uid:minor_version"
                                         flex="50">
                    <template>
                        {{_nuxeoVersion(item)}}
                    </template>
                </nuxeo-data-table-column>

In nuxeo document version is represented by two fields and when client wants to order documents by version both elements should be declared in column. When search is desc from high to low , it does work fine but when search is reversed then results are totally random

problem might be in 
_sortDirectionChanged(e) of PageProviderDisplayBehavior class in nuxeo ui elements. 
Long story short. Version is a key data element and one way or another we should make it sortable.