Don't wrongly return the expression of another field

Fix #46231
qgis · Nov 29, 2021 · e1cfb4e · e1cfb4e
1 parent eb871be
commit e1cfb4e
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/core/vector/qgsvectorlayer.cpp b/src/core/vector/qgsvectorlayer.cpp
@@ -3914,6 +3914,9 @@ void QgsVectorLayer::removeExpressionField( int index )
 
 QString QgsVectorLayer::expressionField( int index ) const
 {
+  if ( mFields.fieldOrigin( index ) != QgsFields::OriginExpression )
+    return QString();
+
   int oi = mFields.fieldOriginIndex( index );
   if ( oi < 0 || oi >= mExpressionFieldBuffer->expressions().size() )
     return QString();