Flink Array Row Bug

This is a reproducer of a bug reported in FLINK-28591.

How to reproduce

Run

mvn clean install exec:java -Dexec.mainClass=com.github.swtwsk.FlinkArrayRowBugJob

and cat the file that got generated (named part-...).

---

Although in the INSERT we tried to insert

array[
    ('Field1', 'Value1'),
    ('Field2', 'Value2')
]

in the JSON that got printed to the generated file we get duplicate of the last inserted row:

"bar": [
  {"foo1":"Field2", "foo2":"Value2"},
  {"foo1":"Field2", "foo2":"Value2"}
]