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-rw-r--r--src/iso19111/io.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/iso19111/io.cpp b/src/iso19111/io.cpp
index 15b578a5..161441ee 100644
--- a/src/iso19111/io.cpp
+++ b/src/iso19111/io.cpp
@@ -7467,9 +7467,11 @@ const std::string &PROJStringFormatter::toString() const {
} else if (step.name == "push" && step.inverted) {
step.name = "pop";
step.inverted = false;
+ ++iter;
} else if (step.name == "pop" && step.inverted) {
step.name = "push";
step.inverted = false;
+ ++iter;
} else if (step.name == "noop" && steps.size() > 1) {
iter = steps.erase(iter);
} else {