@cluster_color should default to null, not empty string

nyalldawson · nyalldawson · commit 6fd5815523d1 · 2016-10-10T19:53:15.000+10:00
diff --git a/src/core/symbology-ng/qgspointdistancerenderer.cpp b/src/core/symbology-ng/qgspointdistancerenderer.cpp
@@ -454,7 +454,7 @@ QgsExpressionContextScope* QgsPointDistanceRenderer::createGroupScope( const Clu
     else
     {
       //mixed colors
-      clusterScope->setVariable( QgsExpressionContext::EXPR_CLUSTER_COLOR, "" );
+      clusterScope->setVariable( QgsExpressionContext::EXPR_CLUSTER_COLOR, QVariant() );
     }
 
     clusterScope->setVariable( QgsExpressionContext::EXPR_CLUSTER_SIZE, group.size() );

Original file line number	Diff line number	Diff line change
`@@ -454,7 +454,7 @@ QgsExpressionContextScope* QgsPointDistanceRenderer::createGroupScope( const Clu`
`454`	`454`	`else`
`455`	`455`	`{`
`456`	`456`	`//mixed colors`
`457`		`- clusterScope->setVariable( QgsExpressionContext::EXPR_CLUSTER_COLOR, "" );`
	`457`	`+ clusterScope->setVariable( QgsExpressionContext::EXPR_CLUSTER_COLOR, QVariant() );`
`458`	`458`	`}`
`459`	`459`
`460`	`460`	`clusterScope->setVariable( QgsExpressionContext::EXPR_CLUSTER_SIZE, group.size() );`