Something should be displayed when there is a citation style error

[koppor]

I have the follwing entry:

@InProceedings{DGWZ2007,
  Title                    = {A Survey of {B2B} Methodologies and Technologies: From Business Models towards Deployment Artifacts},
  Author                   = {Dorn, Jurgen and Grun, Christoph and Werthner, Hannes and Zapletal, Marco},
  Booktitle                = {40th Annual Hawaii International Conference on System Sciences (HICSS'07)},
  Year                     = {2007},
  Month                    = jan,
  Publisher                = {Institute of Electrical and Electronics Engineers},
  _doi                     = {10.1109/HICSS.2007.37},
  File                     = {:DGWZ2007 - A Survey of B2B Methodologies and Technologies_ From Business Models towards Deployment Artifacts.pdf:PDF},
  Owner                    = {Oliver},
  Review                   = {Dec2009: Dorn et al. present a comprehensive survey on approaches in the area of B2B integration
[DGWZ2007]. The approaches are classified using the Open-EDI reference model [3] and distinguish
business models, process models and artifacts that are ready for deployment.},
  Timestamp                = {2013.10.23}
}

The first rendering attempt shows

Bad character inside entry Lexical error at line 1, column 97. Encountered: "\r" (13), after : ""

When I leave the entry and select it again, the preview is not updated at all.

[koppor]

Further, \r should be replaced by space for passing to citationstyles. Alternatively, there should be opened an upstream issue.