Correctly identify qualifier from JSON
Correctly identify qualifier from JSON

Identifies any qualifier or reference if initialised through fromJSON()
on parent claim.

Mirrors commit eb9d3a80b84c237740152b7ffd1957aacea6fb26

Bug: T113212
Change-Id: I9891cbbce54e1866b38bc351382f10d40071c9e2

wikimedia/pywikibot-wikibase