row dispatcher/format_handler: restore compatibility

[yumkam]

Changelog entry

...

Changelog category

• Not for changelog (changelog entry is not required)

Description for reviewers

YQ-4827

[github-actions]

⚪ 2025-10-27 21:26:28 UTC Pre-commit check linux-x86_64-release-asan for 9a9ddc3 has started.
⚪ 2025-10-27 21:26:54 UTC Artifacts will be uploaded here
⚪ 2025-10-27 21:29:00 UTC ya make is running...
🟡 2025-10-27 23:36:42 UTC Some tests failed, follow the links below. This fail is not in blocking policy yet

Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
15280	14848	0	196	218	18

🟢 2025-10-27 23:36:48 UTC Build successful.
🟢 2025-10-27 23:37:11 UTC ydbd size 3.8 GiB changed* by -3.3 KiB, which is <= 0 Bytes vs main: OK

ydbd size dash	main: 4684d1d	merge: 9a9ddc3	diff	diff %
ydbd size	4 061 030 792 Bytes	4 061 027 368 Bytes	-3.3 KiB	-0.000%
ydbd stripped size	1 508 769 216 Bytes	1 508 768 320 Bytes	-896 Bytes	-0.000%

^{*please be aware that the difference is based on comparing your commit and the last completed build from the post-commit, check comparation}

[github-actions]

🟢 2025-10-27 21:26:52 UTC The validation of the Pull Request description is successful.

[github-actions]

⚪ 2025-10-27 21:27:35 UTC Pre-commit check linux-x86_64-relwithdebinfo for 9a9ddc3 has started.
⚪ 2025-10-27 21:27:50 UTC Artifacts will be uploaded here
⚪ 2025-10-27 21:29:16 UTC ya make is running...
🟡 2025-10-27 22:59:34 UTC Some tests failed, follow the links below. Going to retry failed tests...

Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
38552	35726	0	4	2798	24

⚪ 2025-10-27 22:59:42 UTC ya make is running... (failed tests rerun, try 2)
🟢 2025-10-27 23:13:18 UTC Tests successful.

Ya make output | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
612 (only retried tests)	595	0	0	0	17

🟢 2025-10-27 23:13:20 UTC Build successful.
🟢 2025-10-27 23:13:38 UTC ydbd size 2.3 GiB changed* by -3.9 KiB, which is <= 0 Bytes vs main: OK

ydbd size dash	main: 4684d1d	merge: 9a9ddc3	diff	diff %
ydbd size	2 440 226 688 Bytes	2 440 222 656 Bytes	-3.9 KiB	-0.000%
ydbd stripped size	518 955 080 Bytes	518 954 504 Bytes	-576 Bytes	-0.000%

^{*please be aware that the difference is based on comparing your commit and the last completed build from the post-commit, check comparation}

[github-actions]

⚪ 2025-10-28 10:48:29 UTC Pre-commit check linux-x86_64-release-asan for 339f959 has started.
⚪ 2025-10-28 10:48:46 UTC Artifacts will be uploaded here
⚪ 2025-10-28 10:50:08 UTC ya make is running...
🟡 2025-10-28 12:52:52 UTC Some tests failed, follow the links below. This fail is not in blocking policy yet

Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
15280	14792	0	191	273	24

🟢 2025-10-28 12:52:57 UTC Build successful.
🟢 2025-10-28 12:53:21 UTC ydbd size 3.8 GiB changed* by -3.4 KiB, which is <= 0 Bytes vs main: OK

ydbd size dash	main: b5b0c50	merge: 339f959	diff	diff %
ydbd size	4 062 508 528 Bytes	4 062 505 040 Bytes	-3.4 KiB	-0.000%
ydbd stripped size	1 509 400 824 Bytes	1 509 399 928 Bytes	-896 Bytes	-0.000%

^{*please be aware that the difference is based on comparing your commit and the last completed build from the post-commit, check comparation}

[github-actions]

⚪ 2025-10-28 10:48:47 UTC Pre-commit check linux-x86_64-relwithdebinfo for 339f959 has started.
⚪ 2025-10-28 10:48:52 UTC Artifacts will be uploaded here
⚪ 2025-10-28 10:50:14 UTC ya make is running...
🟡 2025-10-28 12:15:50 UTC Some tests failed, follow the links below. Going to retry failed tests...

Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
38559	35743	0	2	2791	23

⚪ 2025-10-28 12:16:01 UTC ya make is running... (failed tests rerun, try 2)
🟢 2025-10-28 12:40:15 UTC Tests successful.

Ya make output | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
444 (only retried tests)	421	0	0	0	23

🟢 2025-10-28 12:40:18 UTC Build successful.
🟢 2025-10-28 12:40:33 UTC ydbd size 2.3 GiB changed* by -4.0 KiB, which is <= 0 Bytes vs main: OK

ydbd size dash	main: b5b0c50	merge: 339f959	diff	diff %
ydbd size	2 427 171 240 Bytes	2 427 167 160 Bytes	-4.0 KiB	-0.000%
ydbd stripped size	517 536 936 Bytes	517 536 360 Bytes	-576 Bytes	-0.000%

^{*please be aware that the difference is based on comparing your commit and the last completed build from the post-commit, check comparation}