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-rw-r--r--core/fpdfapi/fpdf_parser/cpdf_dictionary.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/core/fpdfapi/fpdf_parser/cpdf_dictionary.cpp b/core/fpdfapi/fpdf_parser/cpdf_dictionary.cpp
index cc395a2e08..aeee3382f9 100644
--- a/core/fpdfapi/fpdf_parser/cpdf_dictionary.cpp
+++ b/core/fpdfapi/fpdf_parser/cpdf_dictionary.cpp
@@ -169,6 +169,7 @@ bool CPDF_Dictionary::IsSignatureDict() const {
}
void CPDF_Dictionary::SetFor(const CFX_ByteString& key, CPDF_Object* pObj) {
+ ASSERT(!pObj || pObj->GetObjNum() == 0);
auto it = m_Map.find(key);
if (it == m_Map.end()) {
if (pObj)