Fix memory leak in QFuture

The held results were not cleared by QFutureInterface::operator=(QFutureInterface)
Add call to resultStore().clear(), similar to the destructor.
This needs to be done in the header since we know the template type here.

Task-number: 252208
Reviewed-by: brad

1 files changed, 2 insertions, 0 deletions

diff --git a/src/corelib/concurrent/qfutureinterface.h b/src/corelib/concurrent/qfutureinterface.h
index 85d03c9..345bebe 100644
--- a/src/corelib/concurrent/qfutureinterface.h
+++ b/src/corelib/concurrent/qfutureinterface.h
@@ -165,6 +165,8 @@ public:
 
     QFutureInterface &operator=(const QFutureInterface &other)
     {
+        if (referenceCountIsOne())
+            resultStore().clear();
         QFutureInterfaceBase::operator=(other);
         return *this;
     }