stable-25-3-1: Incorrect WasTheLastBlobBig value at the start of the partition

[ydbot]

Cherry-pick:

• PR Incorrect WasTheLastBlobBig value at the start of the partition #26560

PR was created by cherry-pick workflow run

[github-actions]

🟢 2025-10-13 15:35:37 UTC The validation of the Pull Request description is successful.

[github-actions]

⚪ 2025-10-13 15:36:48 UTC Pre-commit check linux-x86_64-relwithdebinfo for 90546d0 has started.
⚪ 2025-10-13 15:37:01 UTC Artifacts will be uploaded here
⚪ 2025-10-13 15:40:34 UTC ya make is running...
🟡 2025-10-13 17:18:46 UTC Some tests failed, follow the links below. Going to retry failed tests...

Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
39977	37297	0	6	2650	24

⚪ 2025-10-13 17:22:01 UTC ya make is running... (failed tests rerun, try 2)
🟡 2025-10-13 17:42:15 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?
923 (only retried tests)	907	0	1	1	14

⚪ 2025-10-13 17:42:26 UTC ya make is running... (failed tests rerun, try 3)
🔴 2025-10-13 18:03:43 UTC Some tests failed, follow the links below.

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

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
531 (only retried tests)	515	0	1	0	15

🟢 2025-10-13 18:03:52 UTC Build successful.
🟢 2025-10-13 18:04:09 UTC ydbd size 2.3 GiB changed* by +19.1 KiB, which is < 100.0 KiB vs stable-25-3-1: OK

ydbd size dash	stable-25-3-1: fa9bd76	merge: 90546d0	diff	diff %
ydbd size	2 431 948 072 Bytes	2 431 967 640 Bytes	+19.1 KiB	+0.001%
ydbd stripped size	520 967 592 Bytes	520 972 008 Bytes	+4.3 KiB	+0.001%

^{*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]

⚪ 2025-10-13 15:37:53 UTC Pre-commit check linux-x86_64-release-asan for 90546d0 has started.
⚪ 2025-10-13 15:38:07 UTC Artifacts will be uploaded here
⚪ 2025-10-13 15:41:45 UTC ya make is running...
🟡 2025-10-13 18:03:02 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?
17306	16751	0	201	334	20

🟢 2025-10-13 18:04:22 UTC Build successful.
🟢 2025-10-13 18:04:46 UTC ydbd size 3.8 GiB changed* by +21.6 KiB, which is < 100.0 KiB vs stable-25-3-1: OK

ydbd size dash	stable-25-3-1: f6f4881	merge: 90546d0	diff	diff %
ydbd size	4 046 310 168 Bytes	4 046 332 320 Bytes	+21.6 KiB	+0.001%
ydbd stripped size	1 507 362 176 Bytes	1 507 369 760 Bytes	+7.4 KiB	+0.001%

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