ClickHouse/docs/changelogs/v20.12.7.3-stable.md

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### ClickHouse release v20.12.7.3-stable FIXME as compared to v20.12.6.29-stable
#### Bug Fix
* Backported in [#20683](https://github.com/ClickHouse/ClickHouse/issues/20683): Uninitialized memory read was possible in encrypt/decrypt functions if empty string was passed as IV. This closes [#19391](https://github.com/ClickHouse/ClickHouse/issues/19391). [#19397](https://github.com/ClickHouse/ClickHouse/pull/19397) ([Alexey Milovidov](https://github.com/alexey-milovidov)).
* Backported in [#20635](https://github.com/ClickHouse/ClickHouse/issues/20635): Fix rare bug when some replicated operations (like mutation) cannot process some parts after data corruption. Fixes [#19593](https://github.com/ClickHouse/ClickHouse/issues/19593). [#19702](https://github.com/ClickHouse/ClickHouse/pull/19702) ([alesapin](https://github.com/alesapin)).
* Backported in [#20617](https://github.com/ClickHouse/ClickHouse/issues/20617): Check if table function `view` is used in expression list and throw an error. This fixes [#20342](https://github.com/ClickHouse/ClickHouse/issues/20342). [#20350](https://github.com/ClickHouse/ClickHouse/pull/20350) ([Amos Bird](https://github.com/amosbird)).
* Backported in [#20487](https://github.com/ClickHouse/ClickHouse/issues/20487): Fix `LOGICAL_ERROR` for `join_use_nulls=1` when JOIN contains const from SELECT. [#20461](https://github.com/ClickHouse/ClickHouse/pull/20461) ([Azat Khuzhin](https://github.com/azat)).
* Backported in [#20614](https://github.com/ClickHouse/ClickHouse/issues/20614): Add proper checks while parsing directory names for async INSERT (fixes SIGSEGV). [#20498](https://github.com/ClickHouse/ClickHouse/pull/20498) ([Azat Khuzhin](https://github.com/azat)).