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-rw-r--r--Objects/dictobject.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/Objects/dictobject.c b/Objects/dictobject.c
index bb4ea1f..be895d4 100644
--- a/Objects/dictobject.c
+++ b/Objects/dictobject.c
@@ -2551,6 +2551,7 @@ PyDict_Copy(PyObject *o)
split_copy->ma_values = newvalues;
split_copy->ma_keys = mp->ma_keys;
split_copy->ma_used = mp->ma_used;
+ split_copy->ma_version_tag = DICT_NEXT_VERSION();
DK_INCREF(mp->ma_keys);
for (i = 0, n = size; i < n; i++) {
PyObject *value = mp->ma_values[i];