Validate non empty value

[JoryHogeveen]

Description

Related GitHub issue(s)

Fixes #7376

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Changelog text for these changes

PR checklist

• I have tested my own code to confirm it works as I intended.
• My code follows the WordPress Coding Standards.
• My code follows the WordPress Inline Documentation Standards.
• My code includes automated tests for PHP and/or JS (if applicable).

[what-the-diff]

PR Summary

• Enhancement to process_magic_tags Method’s Return Value
  A more comprehensive condition for returning a value in the process_magic_tags method has been introduced. This updated condition also includes numeric values. Previously, the method only returned when the value was not null and not false. The new condition will return in case the value is any value, numeric, or not. This extends the flexibility of functions that depend upon this particular method.

The base branch was changed.