QNetworkRequest::SourceIsFromCacheAttribute doesn't return proper value when cache expire

When the expirationDate on a url cache expire, on the subsequent request, the QNetworkRequest::SourceIsFromCacheAttribute is set to true, even if the cache was expired and a network call was required.

How to reproduce:
1) Create a http request and set the expirationDate to be a specific time (ie: 20seconds).
2) Wait until the 20seconds pass and try to make the same request (with the same url)

Expected result:

• The QNetworkRequest::SourceIsFromCacheAttribute should be set to false, since the data came from the network (and not from the cache)

Actual result:

• The QNetworkRequest::SourceIsFromCacheAttribute is set to true.