Prevent copy using const

qgis · Jan 12, 2021 · 89ff49f · 89ff49f
1 parent 2d6ea89
commit 89ff49f
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/core/qgspolymorphicrelation.cpp b/src/core/qgspolymorphicrelation.cpp
@@ -377,7 +377,8 @@ QList<QgsRelation> QgsPolymorphicRelation::generateRelations() const
     relation.setId( QStringLiteral( "%1_%2" ).arg( d->mRelationId, referencedLayerName ) );
     relation.setPolymorphicRelationId( d->mRelationId );
 
-    for ( const QgsRelation::FieldPair &fieldPair : fieldPairs() )
+    const QList<QgsRelation::FieldPair> constFieldPairs = fieldPairs();
+    for ( const QgsRelation::FieldPair &fieldPair : constFieldPairs )
       relation.addFieldPair( fieldPair );
 
     if ( !relation.isValid() )