expex "everylabel=\actualexno" 在後面的引用中導致錯誤

Question

我在示例數量方面遇到問題。當我在實際發生之前參考該範例（透過其標籤）時，該數字是正​​確的。但是在定義之後引用它會給出錯誤的數字。

everylabel=\actualexno只有當我在命令中使用 時才會發生這種情況\definestyle，並且該範例分為子範例。

    \documentclass[10pt, a4paper]{article}
    \usepackage{expex}
    \definelingstyle{IJAL}{everylabel=\actualexno}  % HERE IS THE PROBLEM
    \lingset{lingstyle=IJAL}                        % (and here)

    \begin{document}
    \gathertags
    Referencing ahead of the definition gives 
      correct number of the whole example (\getref{a}), 
      as well as its part (\getref{a.A}), 
      although the full reference gives us too much (\getfullref{a.A}).

    \pex<a>
      \a<A> some example
    \xe


    The reference to the whole example is still correct afterwards (\getref{a}), 
      but the reference to its part has a one too large prefix (\getref{a.A}) 
      and the full reference is just a concatenation of both, as usual (\getfullref{a.A}).

    \end{document}