[MDEV-11473] JSON_REMOVE returns invalid results - Jira

Compare, note missing comma:

MariaDB 10.2
MariaDB [test]> SET @j = '["a", ["b", "c"], "d"]';
Query OK, 0 rows affected (0.00 sec)

MariaDB [test]> SELECT JSON_REMOVE(@j, '$[1]');
+-------------------------+
\| JSON_REMOVE(@j, '$[1]') \|
+-------------------------+
\| ["a" "d"] \|
+-------------------------+
1 row in set (0.01 sec)

MySQL 5.7
MySQL [test]> SET @j = '["a", ["b", "c"], "d"]';
Query OK, 0 rows affected (0.00 sec)

MySQL [test]> SELECT JSON_REMOVE(@j, '$[1]');
+-------------------------+
\| JSON_REMOVE(@j, '$[1]') \|
+-------------------------+
\| ["a", "d"] \|
+-------------------------+
1 row in set (0.00 sec)

relates to

MDEV-9143 JSON_xxx functions

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MariaDB Server