Page Layout ⇒ Reledmac: footnote position problem

[Penangol]

Dear all,

I am trying to have footnotes over three columns using reledmac package.
However, I don't understand how to get footnotes correctly positioned : it looks like this :

Code: Select all

-----------------------------------------------
footnote 1                               footnote 4
                      footnote 3
footnote 2

where footnote3 vertical alignement is somewhere in the middle between 1 and 2. I want it to be aligned with footnote 1 and 4.

Any idea ?
Thank you,
Pen

MWE:

Code: Select all

\documentclass[12pt]{article}
\usepackage{lipsum}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[english]{babel}
\usepackage[a4paper,textwidth=12cm]{geometry}

\usepackage{reledmac}
\arrangementX[A]{threecol}
\begin{document}

\lipsum[2] \footnoteA{pouet}\footnoteA{pouat}\footnoteA{pouit}\footnoteA{pouot}

\end{document}