[Tex/LaTex] biblatex-ieee ignores protection for capital letters in title

biblatexieee-style

since the last update (v1.1k) of the biblatex-ieee package the protection of capital letters for the whole title doesn't work anymore. I am using misc as entrytype and I want to keep the whole title as it is by using {{Title...}}.

@MISC{bibkey,
      author = {D. Duck},
      title = {{Skriptum zur VU Automatisierung (WS 2014/15)}},
      year = {2014},
      address = {Institut XYZ, Universität ABC}
}

I figured out that v1.1k introduced the command \bbx@colon@search to capitalise after colon in titles. (That command takes two arguments, but with my brackets there is only one available. Thats the problem, isn't it?)
Without this new command everything works fine for me as it does in older versions.

So is the way I use the brackets wrong? Or is it a problem with the last update?

Thanks for your help.

PS: I am using bibtex with biber with the following minimal example:

\documentclass{article}
\usepackage[backend=biber, style=ieee]{biblatex}
\addbibresource{bibliography.bib}
\begin{document}
    Test \cite{bibkey}
    \printbibliography{}
\end{document}

Best Answer

This has indeed changed in the latest version, and might be regarded as a bug. You can work around this by either putting braces around the individual letters that need capitalization or adding an extra level of braces around the whole text.

Sample output

@Misc{bibkey,
  author =   {D. Duck},
  title =    {Skriptum zur {VU} {A}utomatisierung ({WS} 2014/15)},
  year =     2014,
  address =  {Institut XYZ, Universität ABC}
}
@Misc{bibkey2,
  author =   {D. Duck},
  title =    {{{Skriptum zur VU Automatisierung (WS 2014/15)}}},
  year =     2014,
  address =  {Institut XYZ, Universität ABC}
}
\documentclass{article}

\usepackage[utf8]{inputenc}
\usepackage[backend=biber, style=ieee]{biblatex}
\addbibresource{bibliography.bib}

\begin{document}

Test \cite{bibkey,bibkey2}
\printbibliography{}

\end{document}