Fix error "Read beyond last offset" for AsynchronousBoundedReadBuffer

[vitlibar]

Changelog category:

• Bug Fix

Changelog entry:

Fix error Read beyond last offset for AsynchronousBoundedReadBuffer

[robot-ch-test-poll4]

This is an automated comment for commit d842c49 with description of existing statuses. It's updated for the latest CI running

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[vitlibar]

The test 02963_remote_read_small_buffer_size_bug is failing after my fixes in this PR. It doesn't seem obvious for me how to fix it. The test is not quite clear. @nickitat you are the author of this test, maybe you can suggest something?

UPD: After our discussion I've changed the code, test 02963_remote_read_small_buffer_size_bug must be ok now.

[vitlibar]

Test failures:

• Changed tests don't reproduce the bug - this is not true, my test AsynchronousBoundedReadBufferTest.setReadUntilPosition reproduces the bug pretty well, but our Bugfix validate check doesn't consider changes in unit-tests.
• test_materialized_mysql_database/test.py::test_table_with_indexes - the failure is known, see issue 59631