Merge remote-tracking branch 'origin/5.9' into dev

Change-Id: Ibed6ee74d36b4ce37391c82db00a0abd30d09e7a

1 files changed, 4 insertions, 0 deletions

diff --git a/src/qml/jsruntime/qv4qobjectwrapper.cpp b/src/qml/jsruntime/qv4qobjectwrapper.cpp
index 2ac2b0b64d..1dd90995d3 100644
--- a/src/qml/jsruntime/qv4qobjectwrapper.cpp
+++ b/src/qml/jsruntime/qv4qobjectwrapper.cpp
@@ -992,6 +992,10 @@ void QObjectWrapper::destroyObject(bool lastCall)
                 // If the object is C++-owned, we still have to release the weak reference we have
                 // to it.
                 ddata->jsWrapper.clear();
+                if (lastCall && ddata->propertyCache) {
+                    ddata->propertyCache->release();
+                    ddata->propertyCache = nullptr;
+                }
             }
         }
     }