[processing] Reproject algorithm doesn't care about invalid features

(cherry picked from commit 7a8bee2)

Author: nyalldawson

src/analysis/processing/qgsalgorithmtransform.cpp

@@ -35,6 +35,11 @@ QString QgsTransformAlgorithm::outputName() const
   return QObject::tr( "Reprojected" );
 }
 
+QgsProcessingFeatureSource::Flag QgsTransformAlgorithm::sourceFlags() const
+{
+  return QgsProcessingFeatureSource::FlagSkipGeometryValidityChecks;
+}
+
 QString QgsTransformAlgorithm::name() const
 {
   return QStringLiteral( "reprojectlayer" );

src/analysis/processing/qgsalgorithmtransform.h

@@ -47,6 +47,7 @@ class QgsTransformAlgorithm : public QgsProcessingFeatureBasedAlgorithm
     void initParameters( const QVariantMap &configuration = QVariantMap() ) override;
     QgsCoordinateReferenceSystem outputCrs( const QgsCoordinateReferenceSystem & ) const override;
     QString outputName() const override;
+    QgsProcessingFeatureSource::Flag sourceFlags() const override;
 
     bool prepareAlgorithm( const QVariantMap &parameters, QgsProcessingContext &context, QgsProcessingFeedback *feedback ) override;
     QgsFeatureList processFeature( const QgsFeature &feature,  QgsProcessingContext &context, QgsProcessingFeedback *feedback ) override;