add unsafe append to tablecell

[Enjection]

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[github-actions]

⚪ 2024-07-15 13:47:18 UTC Pre-commit check for 65aa553 has started.
⚪ 2024-07-15 13:50:14 UTC Build+Tests linux-x86_64-release-asan is running...
🔴 2024-07-15 14:16:54 UTC Test run completed, no test results found for commit 2cc063e.
⚫ 2024-07-15 14:17:21 UTC Check cancelled

[github-actions]

⚪ 2024-07-15 13:47:23 UTC Pre-commit check for 65aa553 has started.
⚪ 2024-07-15 13:50:22 UTC Build+Tests linux-x86_64-release-clang14 is running...
⚫ 2024-07-15 14:17:01 UTC Check cancelled

[github-actions]

⚪ 2024-07-15 13:50:07 UTC Pre-commit check for 65aa553 has started.
⚪ 2024-07-15 13:53:10 UTC Build+Tests linux-x86_64-relwithdebinfo is running...
🔴 2024-07-15 14:16:42 UTC Test run completed, no test results found for commit 2cc063e.
⚫ 2024-07-15 14:17:05 UTC Check cancelled

[CyberROFL]

lgtm, но пусть еще @snaury посмотрит.

[github-actions]

⚪ 2024-07-15 14:28:23 UTC Pre-commit check for 1a2f9d6 has started.
⚪ 2024-07-15 14:31:42 UTC Build+Tests linux-x86_64-release-clang14 is running...
⚫ 2024-07-15 14:38:31 UTC Check cancelled

[github-actions]

⚪ 2024-07-15 14:42:06 UTC Pre-commit check for f724910 has started.
⚪ 2024-07-15 14:45:03 UTC Build+Tests linux-x86_64-release-clang14 is running...
🟢 2024-07-15 14:56:15 UTC Build successful.

[github-actions]

⚪ 2024-07-15 14:48:44 UTC Pre-commit check for f724910 has started.
⚪ 2024-07-15 14:52:06 UTC Build+Tests linux-x86_64-relwithdebinfo is running...
🟢 2024-07-15 16:48:12 UTC Build successful.
🔴 2024-07-15 16:55:02 UTC Some tests failed, follow the links below.

Test history | Test log

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
39436	34183	0	11	5221	21

🟢 2024-07-15 16:55:42 UTC ydbd size 8.1 GiB changed* by -7.8 MiB, which is <= 0 Bytes vs main: OK

ydbd size dash	main: 85d4495	merge: f724910	diff	diff %
ydbd size	8 691 124 032 Bytes	8 682 924 432 Bytes	-7.8 MiB	-0.094%
ydbd stripped size	473 665 904 Bytes	473 245 296 Bytes	-410.8 KiB	-0.089%

^{*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]

⚪ 2024-07-15 14:50:16 UTC Pre-commit check for f724910 has started.
⚪ 2024-07-15 14:53:22 UTC Build+Tests linux-x86_64-release-asan is running...
🟢 2024-07-15 17:04:18 UTC Build successful.
🔴 2024-07-15 17:08:13 UTC Some tests failed, follow the links below.

Test history | Test log

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
10926	10338	0	85	323	180

🟢 2024-07-15 17:08:59 UTC ydbd size 5.2 GiB changed* by +5.7 KiB, which is < 100.0 KiB vs main: OK

ydbd size dash	main: ab051d7	merge: f724910	diff	diff %
ydbd size	5 567 530 472 Bytes	5 567 536 328 Bytes	+5.7 KiB	+0.000%
ydbd stripped size	1 199 874 160 Bytes	1 199 874 096 Bytes	-64 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}