jsonb crash

Hi,

I found a crash (segmentation fault) on jsonb.
This is the best I could do to reduce the query:

"""
select
75 as c1
from
public.pagg_tab_ml as ref_0,
lateral (select
ref_0.a as c5
from generate_series(1, 300) as sample_0
fetch first 78 rows only
) as subq_0
where case when (subq_0.c5 < 2)
then cast(null as jsonb)
else cast(null as jsonb)
end ? ref_0.c
"""

And because it needs pagg_tab_ml it should be run a regression database.
This affects at least 14 and 15.

Attached is the backtrace.

--
Jaime Casanova
Director de Servicios Profesionales
SystemGuards - Consultores de PostgreSQL