R1:5f95f2b6d51e

Fix variable issue on Conpherence draft saving pathway

Summary:
When we save a Conpherence draft, the draft part works fine but `$xactions` never gets defined, so this gets hit a little later on:

[24-Feb-2014 11:46:10] WARNING: [pool www] child 82805 said into stderr: "NOTICE: PHP message: [2014-02-24 11:46:10] EXCEPTION: (RuntimeException) Undefined variable: xactions at [/INSECURE/devtools/libphutil/src/error/PhutilErrorHandler.php:211]"
[24-Feb-2014 11:46:10] WARNING: [pool www] child 82805 said…