make sure that seqno is unique among all tasks

[gridnevvvit]

Changelog entry

Changelog category

• Not for changelog (changelog entry is not required)

Description for reviewers

...

[github-actions]

🟢 2025-10-29 20:56:54 UTC The validation of the Pull Request description is successful.

[github-actions]

⚪ 2025-10-29 20:57:30 UTC Pre-commit check linux-x86_64-relwithdebinfo for 6f0b18d has started.
⚪ 2025-10-29 20:57:45 UTC Artifacts will be uploaded here
⚪ 2025-10-29 21:01:23 UTC ya make is running...
🟡 2025-10-29 22:35:42 UTC Some tests failed, follow the links below. Going to retry failed tests...

Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
38289	35611	0	7	2650	21

⚪ 2025-10-29 22:38:54 UTC ya make is running... (failed tests rerun, try 2)
🟡 2025-10-29 22:56:43 UTC Some tests failed, follow the links below. Going to retry failed tests...

Ya make output | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
580 (only retried tests)	557	0	2	0	21

⚪ 2025-10-29 22:56:53 UTC ya make is running... (failed tests rerun, try 3)
🔴 2025-10-29 23:12:34 UTC Some tests failed, follow the links below.

Ya make output | Test bloat | Test bloat | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
536 (only retried tests)	520	0	2	0	14

🟢 2025-10-29 23:12:43 UTC Build successful.
🟢 2025-10-29 23:13:01 UTC ydbd size 2.3 GiB changed* by +928 Bytes, which is < 100.0 KiB vs stable-25-3-1: OK

ydbd size dash	stable-25-3-1: 1928e96	merge: 6f0b18d	diff	diff %
ydbd size	2 435 398 440 Bytes	2 435 399 368 Bytes	+928 Bytes	+0.000%
ydbd stripped size	521 548 616 Bytes	521 549 000 Bytes	+384 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]

⚪ 2025-10-29 20:57:33 UTC Pre-commit check linux-x86_64-release-asan for 6f0b18d has started.
⚪ 2025-10-29 20:57:48 UTC Artifacts will be uploaded here
⚪ 2025-10-29 21:01:27 UTC ya make is running...
🟡 2025-10-29 23:04:22 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?
15623	15051	0	244	308	20

🟢 2025-10-29 23:05:37 UTC Build successful.
🟢 2025-10-29 23:06:01 UTC ydbd size 3.8 GiB changed* by +3.0 KiB, which is < 100.0 KiB vs stable-25-3-1: OK

ydbd size dash	stable-25-3-1: 1928e96	merge: 6f0b18d	diff	diff %
ydbd size	4 052 467 944 Bytes	4 052 471 056 Bytes	+3.0 KiB	+0.000%
ydbd stripped size	1 510 349 856 Bytes	1 510 350 944 Bytes	+1.1 KiB	+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}