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Fix crash in vector layer iteration on Qt6 builds
Decrementing an iterator which is already at the beginning results
in a crash
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nyalldawson authored and github-actions committed Jul 20, 2021
1 parent 3164ede commit e8de97ae01670152aa675a9a34d664baa9035928
Showing with 2 additions and 1 deletion.
  1. +2 −1 src/core/qgsvectorlayerfeatureiterator.cpp
@@ -530,7 +530,8 @@ bool QgsVectorLayerFeatureIterator::isValid() const

bool QgsVectorLayerFeatureIterator::fetchNextAddedFeature( QgsFeature &f )
{
while ( mFetchAddedFeaturesIt-- != mSource->mAddedFeatures.constBegin() )
while ( mFetchAddedFeaturesIt != mSource->mAddedFeatures.constBegin() &&
mFetchAddedFeaturesIt-- != mSource->mAddedFeatures.constBegin() )
{
QgsFeatureId fid = mFetchAddedFeaturesIt->id();

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