The "today" shortcut of the solr date facet doesn't work for dates without hour and minute

To reproduce:

• create an application with app minutes
• have a date field in this application, for which the date format does not include hour and minutes (dd.MM.yyyy, for example)
• create at least one entry of this application with the value of the date field in question set to the current day
• create a custom search page for this application, as described in the solr search documentation here http://extensions.xwiki.org/xwiki/bin/view/Extension/Solr+Search+Application#HSearchUIConfiguration and add a facet for the date property added, as described here http://extensions.xwiki.org/xwiki/bin/view/Extension/Solr+Search+Application#HFacetingonObjectProperties
• perform a search in this custom search that contains the aforementioned entry of the application as a result
• in the facets, choose the facet you added for the custom date, and filter, in it, by "Today" (should show 1 as number of results)

Expected result:

• the app entry with the custom date set to the day of the current day should appear

Actual result:

• No result is displayed

See screenshots.