Fix crash when choosing categorized renderer

Fix qgis#34551
nyalldawson · Feb 19, 2020 · dbf999b · dbf999b
1 parent ced0ed4
commit dbf999b
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/core/symbology/qgscategorizedsymbolrenderer.cpp b/src/core/symbology/qgscategorizedsymbolrenderer.cpp
@@ -1060,7 +1060,8 @@ QgsCategorizedSymbolRenderer *QgsCategorizedSymbolRenderer::convertFromRenderer(
     if ( graduatedSymbolRenderer )
     {
       r.reset( new QgsCategorizedSymbolRenderer( QString(), QgsCategoryList() ) );
-      r->setSourceSymbol( graduatedSymbolRenderer->sourceSymbol()->clone() );
+      if ( graduatedSymbolRenderer->sourceSymbol() )
+        r->setSourceSymbol( graduatedSymbolRenderer->sourceSymbol()->clone() );
       if ( graduatedSymbolRenderer->sourceColorRamp() )
       {
         r->setSourceColorRamp( graduatedSymbolRenderer->sourceColorRamp()->clone() );