After clicking the "Save page" button in the "Save your changes" dialog, the spinner (progress bar) appears for a few seconds, then vanishes again. The "Save your changes" dialog remains open and the edit is not saved.
Here is the output of the JavaScript Console in Chromium:
Uncaught TypeError: Cannot read property 'info' of undefined load.php?debug=false&lang=en&modules=ext.visualEditor.base%2Cmediawiki%2Cvi…ext%7Coojs%7Cunicodejs.wordbreak&skin=vector&version=20130719T023752Z&*:83
ve.init.mw.ViewPageTarget.onSaveError load.php?debug=false&lang=en&modules=ext.visualEditor.base%2Cmediawiki%2Cvi…ext%7Coojs%7Cunicodejs.wordbreak&skin=vector&version=20130719T023752Z&*:83
oo.EventEmitter.emit load.php?debug=false&lang=en&modules=ext.visualEditor.base%2Cmediawiki%2Cvi…xt%7Coojs%7Cunicodejs.wordbreak&skin=vector&version=20130719T023752Z&*:124
ve.init.mw.Target.onSaveError load.php?debug=false&lang=en&modules=ext.visualEditor.base%2Cmediawiki%2Cvi…ext%7Coojs%7Cunicodejs.wordbreak&skin=vector&version=20130719T023752Z&*:16
ve.init.mw.Target.onSave load.php?debug=false&lang=en&modules=ext.visualEditor.base%2Cmediawiki%2Cvi…ext%7Coojs%7Cunicodejs.wordbreak&skin=vector&version=20130719T023752Z&*:16
proxy load.php?debug=false&lang=en&modules=jquery%2Cmediawiki%2CSpinner%7Cjquery.…l%7Cmw.MwEmbedSupport&only=scripts&skin=vector&version=20130719T023752Z:10
fire load.php?debug=false&lang=en&modules=jquery%2Cmediawiki%2CSpinner%7Cjquery.…l%7Cmw.MwEmbedSupport&only=scripts&skin=vector&version=20130719T023752Z:12
self.fireWith load.php?debug=false&lang=en&modules=jquery%2Cmediawiki%2CSpinner%7Cjquery.…l%7Cmw.MwEmbedSupport&only=scripts&skin=vector&version=20130719T023752Z:14
done load.php?debug=false&lang=en&modules=jquery%2Cmediawiki%2CSpinner%7Cjquery.…%7Cmw.MwEmbedSupport&only=scripts&skin=vector&version=20130719T023752Z:119
callback load.php?debug=false&lang=en&modules=jquery%2Cmediawiki%2CSpinner%7Cjquery.…%7Cmw.MwEmbedSupport&only=scripts&skin=vector&version=20130719T023752Z:129
The error is reproducible (with this exact console output) even when I make further edits to the article content or change the edit summary and then go back to the "Save your changes" dialog: I can't save seem to save my edit at all. Haven't yet seen this occur in other articles, though (this was an enwiki article).
Version: unspecified
Severity: normal