Duplicated log messages in the regression tests on PG17

[a-masterov]

Hello!

On PG17 I can see repeated LOG blocks of lines in the regression tests e.g.

pg_hint_plan/expected/ut-S.out

Lines 4413 to 4446 in 6c308e9

	LOG: pg_hint_plan:
	used hint:
	IndexScan(ti1 ti1_pred)
	not used hint:
	duplication hint:
	error hint:
	LOG: pg_hint_plan:
	used hint:
	not used hint:
	IndexScan(ti1 ti1_pred)
	duplication hint:
	error hint:
	LOG: pg_hint_plan:
	used hint:
	not used hint:
	IndexScan(ti1 ti1_pred)
	duplication hint:
	error hint:
	LOG: pg_hint_plan:
	used hint:
	not used hint:
	IndexScan(ti1 ti1_pred)
	duplication hint:
	error hint:
	LOG: pg_hint_plan:
	used hint:
	not used hint:
	IndexScan(ti1 ti1_pred)
	duplication hint:
	error hint:

This block repeated 4 times:

LOG:  pg_hint_plan:
used hint:
not used hint:
IndexScan(ti1 ti1_pred)
duplication hint:
error hint:

I don't remember this on PG16.
What can be the cause of such duplication?

Thank you.