带有 moderncv 的信件：如何在遗嘱中包含标题但不在签名中包含标题

Question

在给班级写信时moderncv，为什么可以在“发件人证明”中包含学术头衔，而在签名中却不包含？

相反的问题（在签名中添加标题，但在遗嘱中不添加）已在此处涵盖：在 moderncv 信件签名中添加教育标题

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最小代码：

\documentclass[11pt,a4paper]{moderncv}
\moderncvstyle{classic} 
\moderncvcolor{black} 
\usepackage[utf8]{inputenc}
\usepackage[scale=0.75]{geometry}


% sender's information data
\name{John}{Doe}
\address{street and number}{postcode city}{country}
\phone[mobile]{+1~(234)~567~890}
\phone[fixed]{+2~(345)~678~901}
\phone[fax]{+3~(456)~789~012}
\email{[email protected]}
\homepage{www.johndoe.com}

% recipient's information
\recipient{Company Recruitment team}{Company, Inc.\\123 somestreet\\some city}

%letter info
\date{January 01, 1984}
\opening{Dear TEX SE,}
\closing{Sincerely,}
\enclosure[Attached]{some attachment}

%document    
\begin{document}

\makelettertitle

I would like to have ``Dr. John Doe'' written in the sender's information displayed in the top right of the letter, but just ``John Doe'' in the signature at the end. Thanks!

\makeletterclosing

\end{document}