[8.7] Fix NPE thrown by prefix and regex query in strange scenarios (#94369)#94399

Merged

elasticsearchmachine merged 1 commit intoelastic:8.7from benwtrent:backport/8.7/pr-94369

Mar 8, 2023

+210-133

Commits on Mar 8, 2023

Fix NPE thrown by prefix and regex query in strange scenarios (elastic#94369 )
benwtrent
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