Updated mediawiki/extensions
Project: mediawiki/extensions/ApiSandbox  0bb901f7e7a64eb66aafccd49f79135fb4da6539
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(bug 44063) use .hasOwnProperty when checking for presence of object keys

Otherwise Firefox has troubles when 'watch' is used as a key, due to it being
also a function on Object's prototype.

Change-Id: I56e1637d8fe75ca94617b292098848625df61c0b