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qgis · May 24, 2021 · adab3fe · adab3fe
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diff --git a/python/core/auto_generated/geometry/qgsabstractgeometry.sip.in b/python/core/auto_generated/geometry/qgsabstractgeometry.sip.in
@@ -734,6 +734,12 @@ This method employs the following logic:
 
 This method returns a reference only, and does not involve any geometry cloning.
 
+.. note::
+
+   Ownership of the returned geometry is NOT transferred, and remains with the original
+   geometry object. Callers must take care to ensure that the original geometry object
+   exists for the lifespan of the returned object.
+
 .. versionadded:: 3.20
 %End
 

diff --git a/src/core/geometry/qgsabstractgeometry.h b/src/core/geometry/qgsabstractgeometry.h
@@ -718,6 +718,10 @@ class CORE_EXPORT QgsAbstractGeometry
      *
      * This method returns a reference only, and does not involve any geometry cloning.
      *
+     * \note Ownership of the returned geometry is NOT transferred, and remains with the original
+     * geometry object. Callers must take care to ensure that the original geometry object
+     * exists for the lifespan of the returned object.
+     *
      * \since QGIS 3.20
      */
     virtual const QgsAbstractGeometry *simplifiedTypeRef() const SIP_HOLDGIL;