Databricks CSV seed load coercing NULL booleans to False

[saipraveenpn]

Observed in sqlmesh[databricks] v0.224.
Seed models with Boolean columns having NULL values are coerced to False in the INSERT query. The ideal behavior would be to leave NULLs as is without manipulating data. I was unable to change this behavior through csv_settings.keep_default_na or csv_settings.na_values.

Example snippets to reproduce issue:
test_seed.csv

id,test_ind
1,null
2,false
3,true
4,null

test_seed.sql

MODEL (
  name test_lookup.test_seed
  kind SEED (
    path '$root/seeds/test_seed.csv',
    -- csv_settings (
    --   keep_default_na = false,
    --   na_values = []
    -- )
  ),
  columns (
    id string,
    test_ind boolean
  ),
  tags ( 'SEED' )
);

Generated INSERT Query

INSERT INTO `sqlmesh_testing_dev`.`test_lookup`.test_seed
  REPLACE WHERE
    TRUE
  SELECT
    CAST(`id` AS STRING) AS `id`,
    CAST(`test_ind` AS BOOLEAN) AS test_ind
  FROM
    VALUES ('1', FALSE), ('2', FALSE), ('3', TRUE), ('4', FALSE) AS `t` (`id`, `test_ind`)