Sergey Biryukov 76c599ced2 Formatting: Make the check for empty text in wp_trim_excerpt() more resilient.
This addresses a regression in [47808], which caused excerpts to be generated from post content if an empty string is passed, but not for other values considered empty, e.g. `null` or `false`.

Props riaanlom, laxman-prajapati, SergeyBiryukov.
Fixes #51042.

git-svn-id: https://develop.svn.wordpress.org/trunk@48817 602fd350-edb4-49c9-b593-d223f7449a82
2020-08-18 15:08:19 +00:00
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2020-06-26 13:31:11 +00:00