[Tex/LaTex] Render author with lower case name in bibliography

biberbiblatexbibliographies

I have an author who decided to lower the case of the first letter of both her name and surname as a political act. Problem is Biber doesn't agree with it and complains with 

WARN - Couldn't determine Last Name for name "case, lower" - ignoring name

How do I increase Biber sensitivity toward political differences?

Please consider the following MWE to replicate the warning message

\RequirePackage{filecontents}

\begin{filecontents*}{mybib.bib}
@article{lower_case,
    title = {Title},
    volume = {15},
    number = {5},
    urldate = {2012-10-12},
    journal = {Journal},
    author = {case, lower  and Case, Upper},
    month = jun,
    year = {2012},
    pages = {222--333}
}
\end{filecontents*}

\documentclass{article}


% Set the values for the bibliography
\usepackage[
    style=apa,
    backend=biber,
    isbn=false,
    url=false,
    doi=false,
    eprint=false,
    hyperref=true,
    backref=false,
    firstinits=false,
]{biblatex}

% Recommended for biblatex
\usepackage[utf8]{inputenc}
\usepackage{csquotes}
\usepackage{xpatch}

% Set language
\usepackage[british]{babel}
\DeclareLanguageMapping{british}{british-apa}

\addbibresource{mybib.bib}

\begin{document}

\cite{lower_case}

\printbibliography
\end{document}

Best Answer

With this input

@article{lower_case,
    title = {Title},
    volume = {15},
    number = {5},
    urldate = {2012-10-12},
    journal = {Journal},
    author = {{case}, {lower}  and Case, Upper},
    month = jun,
    year = {2012},
    pages = {222--333}
}

I get

enter image description here

So also the initial is computed correctly.

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