Comment # 12 on bug 1167317 from Fabian Vogt

(In reply to Fabian Vogt from comment #9)
> Actually, it probably makes more sense to take advantage of the modularity
> here and do this in kf5-filesystem instead.

Just an .attr file was needed, the .prov worked OOTB:

https://build.opensuse.org/request/show/790597