[DOCS] Edited ML 6.2.2 release notes (elastic/x-pack-elasticsearch#3966)
Original commit: elastic/x-pack-elasticsearch@6fe9946d270e5fafb40e02782f346f0af9af42ac
To be determined...
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[[xes-bug-6.2.2]]
[float]
=== Bug fixes
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+
Machine Learning::
-* [ML] Fix exception categorising an empty string
+* Fixed an exception that occurred when a categorization field contained an
+empty string.
//Repo: x-pack-elasticsearch
//Pull: 3870
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Monitoring::
* [Monitoring] Register affixed Header Setting
// Repo: x-pack-elasticsearch
