Fix data defined show diagram setting does not always work

nyalldawson · nyalldawson · commit b1c894969e5e · 2018-06-08T11:43:29.000+10:00
Fixes #19109
diff --git a/src/core/qgsvectorlayerdiagramprovider.cpp b/src/core/qgsvectorlayerdiagramprovider.cpp
@@ -84,6 +84,7 @@ QList<QgsLabelFeature *> QgsVectorLayerDiagramProvider::labelFeatures( QgsRender
   QgsFeature fet;
   while ( fit.nextFeature( fet ) )
   {
+    context.expressionContext().setFeature( fet );
     registerFeature( fet, context );
   }
 

Original file line number	Diff line number	Diff line change
`@@ -84,6 +84,7 @@ QList<QgsLabelFeature *> QgsVectorLayerDiagramProvider::labelFeatures( QgsRender`
`84`	`84`	`QgsFeature fet;`
`85`	`85`	`while ( fit.nextFeature( fet ) )`
`86`	`86`	`{`
	`87`	`+ context.expressionContext().setFeature( fet );`
`87`	`88`	`registerFeature( fet, context );`
`88`	`89`	`}`
`89`	`90`