Follow-up to 8222e06d12, which only reset
the item repaint count.
Flushing the queued paint events will bump numRepaints, and the whole
point of calling reset() is to prepare a consistent state before the
next test, so we need to call it after flushing the events.
Pick-to: 6.2 6.4
Change-Id: Id1fe840c14c0940d7020cf8f8cc6a3aeceaa5fb5
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>