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-rw-r--r--src/mongo/db/update/document_diff_serialization.cpp4
1 files changed, 1 insertions, 3 deletions
diff --git a/src/mongo/db/update/document_diff_serialization.cpp b/src/mongo/db/update/document_diff_serialization.cpp
index db3d4520e49..0f5533e1d06 100644
--- a/src/mongo/db/update/document_diff_serialization.cpp
+++ b/src/mongo/db/update/document_diff_serialization.cpp
@@ -80,9 +80,7 @@ Node* DocumentSubDiffNode::addChild(StringData fieldName, std::unique_ptr<Node>
sizeTracker.addEntry(fieldName.size(), nodePtr);
auto result = children.insert({fieldName.toString(), std::move(node)});
- uassert(7693400,
- str::stream() << "Document already has a field named '" << fieldName << "'",
- result.second);
+ invariant(result.second);
StringData storedFieldName = result.first->first;
switch (nodePtr->type()) {
case (NodeType::kArray):