assert   
  - PLAN JOIN (JOIN (TMP_SP1 NATURAL, T1 INDEX (TMP_TBL1_FLD2)), T2 INDEX (TMP_TBL2_FLD1), T3 INDEX (TMP_TBL3_FLD1))
  + PLAN JOIN (TMP_SP1 NATURAL, T1 INDEX (TMP_TBL1_FLD2), T2 INDEX (TMP_TBL2_FLD1), T3 INDEX (TMP_TBL3_FLD1))

LOG DETAILS:

2026-04-06 09:45:19.736
2026-04-06 09:45:19.743 act = <firebird.qa.plugin.Action object at [hex]>
2026-04-06 09:45:19.749
2026-04-06 09:45:19.754 @pytest.mark.version('>=5.0')
2026-04-06 09:45:19.763 def test_1(act: Action):
2026-04-06 09:45:19.773 act.expected_stdout = expected_stdout_5x if act.is_version('<6') else expected_stdout_6x
2026-04-06 09:45:19.783 act.execute(combine_output = True)
2026-04-06 09:45:19.791 >       assert act.clean_stdout == act.clean_expected_stdout
2026-04-06 09:45:19.802 E       assert
2026-04-06 09:45:19.809 E         - PLAN JOIN (JOIN (TMP_SP1 NATURAL, T1 INDEX (TMP_TBL1_FLD2)), T2 INDEX (TMP_TBL2_FLD1), T3 INDEX (TMP_TBL3_FLD1))
2026-04-06 09:45:19.825 E         + PLAN JOIN (TMP_SP1 NATURAL, T1 INDEX (TMP_TBL1_FLD2), T2 INDEX (TMP_TBL2_FLD1), T3 INDEX (TMP_TBL3_FLD1))
2026-04-06 09:45:19.834
2026-04-06 09:45:19.844 tests/bugs/gh_3812_test.py:84: AssertionError
2026-04-06 09:45:19.861 ---------------------------- Captured stdout setup -----------------------------
2026-04-06 09:45:19.874 Creating db: localhost:/var/tmp/qa_2024/test_11403/test.fdb [page_size=None, sql_dialect=None, charset='NONE', user=SYSDBA, password=masterkey]