Is this a bug in "Custom Actions" or did I miss something?

[kinook]

You are the first to report this problem. I don't think that it's a bug (the XML standard [1] doesn't specify whether whitespace should or should not be considered significant to an application). I do apologize that this caused some difficulty. We'll consider changing this behavior, since it does seem reasonable for whitespace to be ignored in most cases.

[1] http://www.w3.org/TR/REC-xml/#sec-white-space