fix unregister group race

[ivanmorozov333]

• Bugfix

[github-actions]

⚪ 2024-10-03 06:27:50 UTC Pre-commit check linux-x86_64-relwithdebinfo for 491533b has started.
⚪ 2024-10-03 06:28:01 UTC Artifacts will be uploaded here
⚪ 2024-10-03 06:30:53 UTC ya make is running...
🔴 2024-10-03 06:34:31 UTC Build failed, see the logs.

[github-actions]

⚪ 2024-10-03 06:28:07 UTC Pre-commit check linux-x86_64-release-asan for 491533b has started.
⚪ 2024-10-03 06:28:18 UTC Artifacts will be uploaded here
⚪ 2024-10-03 06:31:16 UTC ya make is running...
⚫ 2024-10-03 06:36:56 UTC Check cancelled

[github-actions]

⚪ 2024-10-03 06:40:22 UTC Pre-commit check linux-x86_64-release-asan for f1e9c01 has started.
⚪ 2024-10-03 06:40:32 UTC Artifacts will be uploaded here
⚪ 2024-10-03 06:43:22 UTC ya make is running...
🟡 2024-10-03 08:21:57 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?
11504	11305	0	54	38	107

🟢 2024-10-03 08:22:55 UTC Build successful.
🟢 2024-10-03 08:23:26 UTC ydbd size 5.7 GiB changed* by +9.3 KiB, which is < 100.0 KiB vs main: OK

ydbd size dash	main: a491b73	merge: f1e9c01	diff	diff %
ydbd size	6 085 731 248 Bytes	6 085 740 784 Bytes	+9.3 KiB	+0.000%
ydbd stripped size	1 520 437 360 Bytes	1 520 439 280 Bytes	+1.9 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]

⚪ 2024-10-03 06:40:50 UTC Pre-commit check linux-x86_64-relwithdebinfo for f1e9c01 has started.
⚪ 2024-10-03 06:41:00 UTC Artifacts will be uploaded here
⚪ 2024-10-03 06:43:54 UTC ya make is running...
🟡 2024-10-03 07:34:26 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?
16461	14983	0	1	1377	100

⚪ 2024-10-03 07:35:50 UTC ya make is running... (failed tests rerun, try 2)
🟢 2024-10-03 07:47:21 UTC Tests successful.

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

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
99 (only retried tests)	5	0	0	0	94

🟢 2024-10-03 07:47:27 UTC Build successful.
🟢 2024-10-03 07:47:47 UTC ydbd size 2.8 GiB changed* by +3.1 KiB, which is < 100.0 KiB vs main: OK

ydbd size dash	main: a491b73	merge: f1e9c01	diff	diff %
ydbd size	3 001 625 304 Bytes	3 001 628 440 Bytes	+3.1 KiB	+0.000%
ydbd stripped size	477 324 088 Bytes	477 324 600 Bytes	+512 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}