It occurs when application is displayed in language different than English.
1. Create Content Type with text line (title) and map location (map)
2. Go to Content/Content structure and click Create
3. Select Content Type from step 1
4. Fill title and type any location for map field and click search button
5. Click Publish
6. Click Edit and change something in title
7. Click Publish
Content item is not published, because longitude validation appears. Longitude and latitude fields are empty.
Content is successfully published.
Hint: If user clicks again search button, fields with coordinates will be filled and user is able to publish now.