Anton Timmermans f44e3f1740 Meta boxes: Don't assume that callback args are an array.
While the documentation for add_meta_box() specifices that $callback_args should be an array, this has never been enforced, and we have workarounds in place for when it's passed as something other than an array.

Rather than break sites that are passing unexpected data, we can quietly just allow for it, instead.

Props johnjamesjacoby, birgire, pento.
Merges [43838] to trunk.
Fixes #45206.


git-svn-id: https://develop.svn.wordpress.org/trunk@44174 602fd350-edb4-49c9-b593-d223f7449a82
2018-12-14 09:38:09 +00:00
2017-11-30 23:09:33 +00:00
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