Update CHANGELOG.md

Co-authored-by: Peter Štibraný <[email protected]>
Signed-off-by: nous23 <[email protected]>

Author: nous23

CHANGELOG.md

@@ -50,7 +50,7 @@
 * [BUGFIX] Querier: After query-frontend restart, querier may have lower than configured concurrency. #4417
 * [BUGFIX] Memberlist: forward only changes, not entire original message. #4419
 * [BUGFIX] Memberlist: don't accept old tombstones as incoming change, and don't forward such messages to other gossip members. #4420
-* [BUGFIX] Querier: querier panics when query exemplars. #4469
+* [BUGFIX] Querier: fixed panic when querying exemplars and using `-distributor.shard-by-all-labels=false`. #4473
 
 ## 1.10.0 / 2021-08-03