Fixed cancellation for adding columns with default values

[dahbka-lis]

Changelog entry

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Changelog category

• Not for changelog (changelog entry is not required)

Description for reviewers

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[github-actions]

🟢 2025-08-08 08:01:55 UTC The validation of the Pull Request description is successful.

[github-actions]

⚪ 2025-08-08 08:06:16 UTC Pre-commit check linux-x86_64-release-asan for 4e05b8e has started.
⚪ 2025-08-08 08:06:30 UTC Artifacts will be uploaded here
⚪ 2025-08-08 08:10:14 UTC ya make is running...
🟡 2025-08-08 10:47:37 UTC Some tests failed, follow the links below. This fail is not in blocking policy yet

Test history | Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
16778	16333	0	113	310	22

🟢 2025-08-08 10:49:11 UTC Build successful.
🟢 2025-08-08 10:49:38 UTC ydbd size 4.0 GiB changed* by +17.5 KiB, which is < 100.0 KiB vs main: OK

ydbd size dash	main: b34e8a0	merge: 4e05b8e	diff	diff %
ydbd size	4 248 375 392 Bytes	4 248 393 272 Bytes	+17.5 KiB	+0.000%
ydbd stripped size	1 470 079 064 Bytes	1 470 083 512 Bytes	+4.3 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}

[github-actions]

⚪ 2025-08-08 08:06:43 UTC Pre-commit check linux-x86_64-relwithdebinfo for 4e05b8e has started.
⚪ 2025-08-08 08:06:56 UTC Artifacts will be uploaded here
⚪ 2025-08-08 08:10:49 UTC ya make is running...
🟡 2025-08-08 10:10:54 UTC Some tests failed, follow the links below. Going to retry failed tests...

Test history | Ya make output | Test bloat

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
39365	36576	0	3	2753	33

⚪ 2025-08-08 10:15:04 UTC ya make is running... (failed tests rerun, try 2)
🟢 2025-08-08 10:28:22 UTC Tests successful.

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

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
1014 (only retried tests)	937	0	0	53	24

🟢 2025-08-08 10:28:34 UTC Build successful.
🟢 2025-08-08 10:28:54 UTC ydbd size 2.2 GiB changed* by +15.4 KiB, which is < 100.0 KiB vs main: OK

ydbd size dash	main: b34e8a0	merge: 4e05b8e	diff	diff %
ydbd size	2 414 813 544 Bytes	2 414 829 352 Bytes	+15.4 KiB	+0.001%
ydbd stripped size	504 942 696 Bytes	504 944 392 Bytes	+1.7 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}