null is the “default default” in getDefault() (if the method has neither
been overridden nor $this->mDefault been set), so it can appear in the
field data. Don’t pass it to the validator (which may not expect a null
value) if the param is supposed to be required.
Bug: T319219
Change-Id: Ib6bb119b841ffcbb5e7fb30014355dc90ba9b46e
MediaWiki is a free and open-source wiki software package written in PHP. It
serves as the platform for Wikipedia and the other Wikimedia projects, used
by hundreds of millions of people each month. MediaWiki is localised in over
350 languages and its reliability and robust feature set have earned it a large
and vibrant community of third-party users and developers.
MediaWiki is:
feature-rich and extensible, both on-wiki and with hundreds of extensions;
scalable and suitable for both small and large sites;
simple to install, working on most hardware/software combinations; and
available in your language.
For system requirements, installation, and upgrade details, see the files
RELEASE-NOTES, INSTALL, and UPGRADE.
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MediaWiki's copyright and license (GNU General Public License, version 2 or
later). Many thanks to the Wikimedia community for testing and suggestions.
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