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diff --git a/src/third_party/wiredtiger/test/suite/test_hs15.py b/src/third_party/wiredtiger/test/suite/test_hs15.py
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+++ b/src/third_party/wiredtiger/test/suite/test_hs15.py
@@ -0,0 +1,100 @@
+#!/usr/bin/env python
+#
+# Public Domain 2014-2020 MongoDB, Inc.
+# Public Domain 2008-2014 WiredTiger, Inc.
+#
+# This is free and unencumbered software released into the public domain.
+#
+# Anyone is free to copy, modify, publish, use, compile, sell, or
+# distribute this software, either in source code form or as a compiled
+# binary, for any purpose, commercial or non-commercial, and by any
+# means.
+#
+# In jurisdictions that recognize copyright laws, the author or authors
+# of this software dedicate any and all copyright interest in the
+# software to the public domain. We make this dedication for the benefit
+# of the public at large and to the detriment of our heirs and
+# successors. We intend this dedication to be an overt act of
+# relinquishment in perpetuity of all present and future rights to this
+# software under copyright law.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+# OTHER DEALINGS IN THE SOFTWARE.
+
+import time, wiredtiger, wttest
+
+def timestamp_str(t):
+    return '%x' % t
+
+# test_hs15.py
+# Ensure eviction doesn't clear the history store again after checkpoint has done so because of the same update without timestamp.
+class test_hs14(wttest.WiredTigerTestCase):
+    conn_config = 'cache_size=5MB'
+    session_config = 'isolation=snapshot'
+
+    def test_hs15(self):
+        uri = 'table:test_hs15'
+        self.session.create(uri, 'key_format=S,value_format=S')
+        cursor = self.session.open_cursor(uri)
+
+        value1 = 'a' * 500
+        value2 = 'b' * 500
+        value3 = 'c' * 500
+
+        # Insert an update without timestamp
+        self.session.begin_transaction()
+        cursor[str(0)] = value1
+        self.session.commit_transaction()
+
+        # Insert a bunch of other contents to trigger eviction
+        for i in range(1, 1000):
+            self.session.begin_transaction()
+            cursor[str(i)] = value2
+            self.session.commit_transaction('commit_timestamp=' + timestamp_str(3))
+
+        # Do a modify and an update with timestamps
+        self.session.begin_transaction()
+        cursor.set_key(str(0))
+        mods = [wiredtiger.Modify('B', 100, 1)]
+        self.assertEqual(cursor.modify(mods), 0)
+        self.session.commit_transaction('commit_timestamp=' + timestamp_str(1))
+
+        self.session.begin_transaction()
+        cursor[str(0)] = value2
+        self.session.commit_transaction('commit_timestamp=' + timestamp_str(2))
+
+        # Make the modify with timestamp and the update without timestamp obsolete
+        self.conn.set_timestamp('oldest_timestamp=' + timestamp_str(1))
+
+        # Do a checkpoint
+        self.session.checkpoint()
+
+        self.session.begin_transaction()
+        cursor[str(0)] = value3
+        self.session.commit_transaction('commit_timestamp=' + timestamp_str(3))
+
+        # Insert a bunch of other contents to trigger eviction
+        for i in range(1, 1000):
+            self.session.begin_transaction()
+            cursor[str(i)] = value3
+            self.session.commit_transaction('commit_timestamp=' + timestamp_str(3))
+
+        expected = list(value1)
+        expected[100] = 'B'
+        expected = str().join(expected)
+        self.session.begin_transaction('read_timestamp=' + timestamp_str(1))
+        self.assertEqual(cursor[str(0)], expected)
+        self.session.rollback_transaction()
+
+        self.session.begin_transaction('read_timestamp=' + timestamp_str(2))
+        self.assertEqual(cursor[str(0)], value2)
+        self.session.rollback_transaction()
+
+        self.session.begin_transaction('read_timestamp=' + timestamp_str(3))
+        self.assertEqual(cursor[str(0)], value3)
+        self.session.rollback_transaction()