Fixed changelog entry for PR 3178 (#3196)

Signed-off-by: Marco Pracucci <[email protected]>

Author: pracucci

CHANGELOG.md

@@ -3,6 +3,7 @@
 ## master / unreleased
 
 * [ENHANCEMENT] Ingester: added new metric `cortex_ingester_active_series` to track active series more accurately. Also added options to control whether active series tracking is enabled (`-ingester.active-series-enabled`, defaults to false), and how often this metric is updated (`-ingester.active-series-update-period`) and max idle time for series to be considered inactive (`-ingester.active-series-idle-timeout`). #3153
+* [BUGFIX] No-longer-needed ingester operations for queries triggered by queriers and rulers are now canceled. #3178
 * [BUGFIX] Ruler: directories in the configured `rules-path` will be removed on startup and shutdown in order to ensure they don't persist between runs. #3195
 * [BUGFIX] Handle hash-collisions in the query path. #3192
 
@@ -82,7 +83,6 @@
 * [BUGFIX] Configs: prevent validation of templates to fail when using template functions. #3157
 * [BUGFIX] Configuring the S3 URL with an `@` but without username and password doesn't enable the AWS static credentials anymore. #3170
 * [BUGFIX] Limit errors on ranged queries (`api/v1/query_range`) no longer return a status code `500` but `422` instead. #3167
-* [BUGFIX] No-longer-needed ingester operations from queries are now canceled. #3178
 
 ## 1.3.0 / 2020-08-21