The second and subsequent case when subqueries in the select_clause are not correctly recognized

[maoxingda]

SQL

select
    1,
    case
        when 1 = ( select count(*) from tab1 where col1 = 'tab2' )
            then ( select count(*) from tab2 )
        else 0
    end as cnt

To Reproduce

Note here we refer to SQL provided in prior step as stored in a file named test.sql

from sqllineage.runner import LineageRunner

with open("test.sql") as f:
    sql = f.read()

lr = LineageRunner(sql, dialect="redshift")

print(lr.source_tables)

Actual behavior

[]

Expected behavior

[Table: <default>.tab1, Table: <default>.tab2]

Python version (available via python --version)

• 3.10

SQLLineage version (available via sqllineage --version):

• 1.5.0

Additional context