fix use after free on follower deletion

[vporyadke]

Changelog entry

fix use after free on follower deletion

Changelog category

• Bugfix
• Not for changelog (changelog entry is not required)

Additional information

...

[github-actions]

⚪ 2024-10-24 14:43:47 UTC Pre-commit check for 5891d70 has started.
⚪ 2024-10-24 14:46:32 UTC Build linux-x86_64-release-clang14 is running...
🟢 2024-10-24 15:07:03 UTC Build successful.

[github-actions]

⚪ 2024-10-24 14:44:06 UTC Pre-commit check for 5891d70 has started.
⚪ 2024-10-24 14:46:48 UTC Build linux-x86_64-relwithdebinfo is running...
🟢 2024-10-24 15:29:24 UTC Build successful.
⚪ 2024-10-24 15:29:41 UTC Tests are running...
🔴 2024-10-24 16:55:07 UTC Some tests failed, follow the links below.

Test history | Test log

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
14560	13204	0	13	1300	43

🟢 2024-10-24 16:55:59 UTC ydbd size 8.2 GiB changed* by -32 Bytes, which is <= 0 Bytes vs stable-24-3: OK

ydbd size dash	stable-24-3: 93f64f6	merge: 5891d70	diff	diff %
ydbd size	8 852 157 144 Bytes	8 852 157 112 Bytes	-32 Bytes	-0.000%
ydbd stripped size	483 371 016 Bytes	483 371 016 Bytes	0 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]

⚪ 2024-10-24 14:44:23 UTC Pre-commit check for 5891d70 has started.
⚪ 2024-10-24 14:46:57 UTC Build linux-x86_64-release-asan is running...
🟢 2024-10-24 15:10:35 UTC Build successful.
⚪ 2024-10-24 15:10:50 UTC Tests are running...
🔴 2024-10-24 17:17:09 UTC Some tests failed, follow the links below.

Test history | Test log

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
10261	10169	0	19	28	45

🟢 2024-10-24 17:17:55 UTC ydbd size 5.6 GiB changed* by -160 Bytes, which is <= 0 Bytes vs stable-24-3: OK

ydbd size dash	stable-24-3: 93f64f6	merge: 5891d70	diff	diff %
ydbd size	5 986 600 416 Bytes	5 986 600 256 Bytes	-160 Bytes	-0.000%
ydbd stripped size	1 500 709 888 Bytes	1 500 709 760 Bytes	-128 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]

⚪ 2024-10-24 18:13:35 UTC Pre-commit check for 5891d70 has started.
⚪ 2024-10-24 18:16:24 UTC Build linux-x86_64-release-clang14 is running...
🟢 2024-10-24 18:21:37 UTC Build successful.

[github-actions]

⚪ 2024-10-24 18:13:50 UTC Pre-commit check for 5891d70 has started.
⚪ 2024-10-24 18:16:31 UTC Build linux-x86_64-release-asan is running...
🟢 2024-10-24 18:40:29 UTC Build successful.
⚪ 2024-10-24 18:40:46 UTC Tests are running...
🔴 2024-10-24 20:50:04 UTC Some tests failed, follow the links below.

Test history | Test log

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
10260	10172	0	19	25	44

🟢 2024-10-24 20:50:52 UTC ydbd size 5.6 GiB changed* by -160 Bytes, which is <= 0 Bytes vs stable-24-3: OK

ydbd size dash	stable-24-3: 93f64f6	merge: 5891d70	diff	diff %
ydbd size	5 986 600 416 Bytes	5 986 600 256 Bytes	-160 Bytes	-0.000%
ydbd stripped size	1 500 709 888 Bytes	1 500 709 760 Bytes	-128 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]

⚪ 2024-10-24 18:13:50 UTC Pre-commit check for 5891d70 has started.
⚪ 2024-10-24 18:16:24 UTC Build linux-x86_64-relwithdebinfo is running...
🟢 2024-10-24 18:56:00 UTC Build successful.
⚪ 2024-10-24 18:56:14 UTC Tests are running...
🔴 2024-10-24 20:19:45 UTC Some tests failed, follow the links below.

Test history | Test log

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
14560	13206	0	12	1300	42

🟢 2024-10-24 20:20:36 UTC ydbd size 8.2 GiB changed* by -32 Bytes, which is <= 0 Bytes vs stable-24-3: OK

ydbd size dash	stable-24-3: 93f64f6	merge: 5891d70	diff	diff %
ydbd size	8 852 157 144 Bytes	8 852 157 112 Bytes	-32 Bytes	-0.000%
ydbd stripped size	483 371 016 Bytes	483 371 016 Bytes	0 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}