If I add other statements on a File page they're greyed out when I reload the page, unless their properties are in $wgMediaInfoProperties. Also the greyed-out statements have a popup when I click on them saying that they're not fully supported
Instead we need to only grey-out and provide a popup for properties whose values are not of the type wikibase-entityid. So, for example, depicts, instance of, location should not be greyed out or get a popup, but quantity and coordinate location should
Note that the popup text needs to be changed to reflect the fact the restriction is now on property type rather than property