avoid changing shardstate reads list during iteration (#12150)

[gridnevvvit]

Changelog entry

avoid changing shardstate reads list during iteration (#12150)

Changelog category

• Not for changelog (changelog entry is not required)

Additional information

...

[github-actions]

⚪ 2024-12-01 22:29:39 UTC Pre-commit check for 2c645af has started.
⚪ 2024-12-01 22:32:13 UTC Build linux-x86_64-release-clang14 is running...
🟢 2024-12-01 22:39:13 UTC Build successful.

[github-actions]

⚪ 2024-12-01 22:29:54 UTC Pre-commit check for 2c645af has started.
⚪ 2024-12-01 22:32:39 UTC Build linux-x86_64-relwithdebinfo is running...
🟢 2024-12-01 23:12:22 UTC Build successful.
⚪ 2024-12-01 23:12:41 UTC Tests are running...
🔴 2024-12-02 00:39:23 UTC Some tests failed, follow the links below.

Test history | Test log

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
14632	13271	0	22	1300	39

🟢 2024-12-02 00:40:15 UTC ydbd size 8.3 GiB changed* by +12.2 KiB, which is < 100.0 KiB vs stable-24-3-13-hotfix: OK

ydbd size dash	stable-24-3-13-hotfix: 95d3f8b	merge: 2c645af	diff	diff %
ydbd size	8 861 044 296 Bytes	8 861 056 784 Bytes	+12.2 KiB	+0.000%
ydbd stripped size	483 750 216 Bytes	483 750 792 Bytes	+576 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]

⚪ 2024-12-01 22:30:02 UTC Pre-commit check for 2c645af has started.
⚪ 2024-12-01 22:32:35 UTC Build linux-x86_64-release-asan is running...
🟢 2024-12-01 22:55:40 UTC Build successful.
⚪ 2024-12-01 22:55:56 UTC Tests are running...
🔴 2024-12-02 00:55:17 UTC Some tests failed, follow the links below.

Test history | Test log

TESTS	PASSED	ERRORS	FAILED	SKIPPED	MUTED?
10332	10240	0	27	24	41

🟢 2024-12-02 00:56:00 UTC ydbd size 5.6 GiB changed* by +4.6 KiB, which is < 100.0 KiB vs stable-24-3-13-hotfix: OK

ydbd size dash	stable-24-3-13-hotfix: 95d3f8b	merge: 2c645af	diff	diff %
ydbd size	5 992 887 464 Bytes	5 992 892 152 Bytes	+4.6 KiB	+0.000%
ydbd stripped size	1 501 962 656 Bytes	1 501 963 488 Bytes	+832 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}