My previous fix for CPU load issues between HTTP thread
and user thread was fragile if the upload QIODevice
emitted readyRead() multiple times.
[ChangeLog][QtNetwork][QNetworkAccessManager] Fix behavior of upload QIODevice
that generate data on readyRead() for HTTP PUT/POST
Change-Id: Idb1c2d5a382a704d8cc08fe03c55c883bfc95aa7
Reviewed-by: Christian Kamm <kamm@incasoftware.de>
Reviewed-by: Richard J. Moore <rich@kde.org>