Sergey Biryukov bb8988e3ec Options, Meta APIs: Prevent excessive notoptions key lookups. ...

When the `notoptions` key does not exist in a persistent object cache, it was requested hundreds of times until the first not-option is written.

This commit improves performance by setting the value to an empty array to prevent non-existent `notoptions` key from triggering multiple key lookups.

Follow-up to [4855], [14515].

Props tillkruess, dd32, spacedmonkey.
Fixes #56639.
Built from https://develop.svn.wordpress.org/trunk@54345


git-svn-id: http://core.svn.wordpress.org/trunk@53904 1a063a9b-81f0-0310-95a4-ce76da25c4cd

2022-09-28 13:44:15 +00:00

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