1 files changed, 2 insertions, 0 deletions
diff --git a/Source/WebCore/svg/properties/SVGAnimatedListPropertyTearOff.h b/Source/WebCore/svg/properties/SVGAnimatedListPropertyTearOff.h
index 6177281c3..0fd56cc65 100644
--- a/Source/WebCore/svg/properties/SVGAnimatedListPropertyTearOff.h
+++ b/Source/WebCore/svg/properties/SVGAnimatedListPropertyTearOff.h
@@ -68,6 +68,8 @@ public:
             m_baseVal = nullptr;
         else if (&property == m_animVal)
             m_animVal = nullptr;
+        if (!m_baseVal && !m_animVal)
+            detachListWrappers(m_values.size());
     }
 
     int findItem(SVGProperty* property)