I'm receiving what sounds like a similar error in blackpearl 4.5 1230 when I upload an InfoPath form to a SharePoint form library and try to set a metadata URL field that also contains an asterisk. The funny part is that the first time the document is uploaded it doesn't generate the error. However, if I try to overwrite the document and reset the URL it gives the EntityName error.
I've reproduced this and will submit a support ticket.
Regards,
Tim
Just as a follow-up K2 support has confirmed that this is a bug in bp 4.5 1230.
Thanks for the follow-up. As a workaround I created a method that looks for all the unacceptable xml characters in a field and replaces them with underscores. Not exactly what I would like but it will suffice for now.
If a workflow is involved, then update the column on the workflow side (as opposed to within an InfoPath rule) and use an inline function to HTML Encode the string prior to the update.