Custom query results toolbar action not work

[DSMaslov]

I try add Extension contributions-guide. All buttons, hubs and panels work correctly, except Custom query results toolbar.
This contribution
{ "id": "showProperties_24", "type": "ms.vss-web.action", "description": "Shows the target properties for work item query results toolbar menu.", "targets": [ "ms.vss-work-web.work-item-query-results-toolbar-menu" ], "properties": { "text": "Custom query results toolbar menu", "title": "ms.vss-work-web.work-item-query-results-toolbar-menu (Custom query results toolbar action)", "icon": "images/show-properties.png", "group": "actions", "uri": "main.html", "registeredObjectId": "showProperties" } }