1 files changed, 4 insertions, 0 deletions
diff --git a/src/iso19111/coordinateoperation.cpp b/src/iso19111/coordinateoperation.cpp
index 9815a22a..d1bc8eb5 100644
--- a/src/iso19111/coordinateoperation.cpp
+++ b/src/iso19111/coordinateoperation.cpp
@@ -6587,6 +6587,10 @@ TransformationNNPtr Transformation::shallowClone() const {
     auto transf = Transformation::nn_make_shared<Transformation>(*this);
     transf->assignSelf(transf);
     transf->setCRSs(this, false);
+    if (transf->d->forwardOperation_) {
+        transf->d->forwardOperation_ =
+            transf->d->forwardOperation_->shallowClone().as_nullable();
+    }
     return transf;
 }