libbappstream-glib icon type=stock not supported

[Vascom]

Hi all.

Some packages has string
<icon type="stock">...
And appstream-util validate-relax show error
? tag-invalid           : stock icon is not valid

There exist bugreport one year old!
https://bugzilla.redhat.com/show_bug.cgi?id=1584944

Please pay attention to it.

No I don't know what to do:
1. Remove this string from xml file.
2. Disable validation at all. But guidelines say that I MUST run it
https://docs.fedoraproject.org/en-US/packaging-guidelines/AppData/#_app_data...

And I see that some packages not run validation like
plasma-systemsettings bit still contain metainfo .xml with <icon
type="stock">systemsettings</icon>

--
Best Regards,
Vasiliy Glazov