See
<http://lists.wikimedia.org/pipermail/wikitech-l/2012-November/064741.html>
The new version was disabled on at least some Wikisources and the
changes will also be reverted in the code until fixed, apparently, but
they may come back.
<https://wikisource.org/w/index.php?title=Wikisource:Scriptorium&diff=339889&oldid=339888>
Nemo