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diff --git a/src/third_party/wiredtiger/test/suite/test_hs28.py b/src/third_party/wiredtiger/test/suite/test_hs28.py
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+#!/usr/bin/env python
+#
+# Public Domain 2014-present 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 wiredtiger, wttest
+from wtscenario import make_scenarios
+
+# test_hs28.py
+# Test that we insert a full update instead of a reverse modify to the
+# history store if a modify follows a squashed on page value.
+
+class test_hs28(wttest.WiredTigerTestCase):
+    conn_config = ''
+    session_config = 'isolation=snapshot'
+
+    key_format_values = [
+        ('column', dict(key_format='r')),
+        ('integer_row', dict(key_format='i')),
+    ]
+
+    scenarios = make_scenarios(key_format_values)
+
+    def conn_config(self):
+        config = 'cache_size=50MB,statistics=(all),statistics_log=(json,on_close,wait=1)'
+        return config
+
+    def test_insert_hs_full_update(self):
+        uri = 'table:test_hs28'
+        self.session.create(uri, 'key_format={},value_format=S'.format(self.key_format))
+
+        value1 = "a"
+        value2 = "b"
+
+        cursor = self.session.open_cursor(uri)
+        # Insert a full value
+        self.session.begin_transaction()
+        cursor[1] = value1
+        self.session.commit_transaction('commit_timestamp=' + self.timestamp_str(2))
+
+        # Do a modify update
+        self.session.begin_transaction()
+        cursor.set_key(1)
+        mods = [wiredtiger.Modify('A', 0, 1)]
+        self.assertEqual(cursor.modify(mods), 0)
+        self.session.commit_transaction('commit_timestamp=' + self.timestamp_str(5))
+
+        # Commit a transaction with multiple updates on the same key
+        self.session.begin_transaction()
+        cursor[1] = value1
+        cursor[1] = value2
+        self.session.commit_transaction('commit_timestamp=' + self.timestamp_str(10))
+
+        # Move the updates to the history store
+        self.session.checkpoint()
+
+        stat_cursor = self.session.open_cursor('statistics:', None, None)
+        hs_full_update = stat_cursor[wiredtiger.stat.conn.cache_hs_insert_full_update][2]
+        hs_reverse_modify = stat_cursor[wiredtiger.stat.conn.cache_hs_insert_reverse_modify][2]
+        stat_cursor.close()
+
+        self.assertEqual(hs_full_update, 2)
+        self.assertEqual(hs_reverse_modify, 0)