eqnarray: \nonumber also neutralizes next line number?

[dginev]

A minimal example to reproduce:

\documentclass{article}
\begin{document}

\begin{eqnarray}
x \nonumber \\ % no number
&+& y \\ % this should get (1)
&+& z \nonumber % no number
\end{eqnarray}

\begin{eqnarray}
x \nonumber \\ % no number
&+& y_1 \\ % this should get (1)
&+& y_2 \\ % this should get (2)
&+& z \nonumber % no number
\end{eqnarray}
\end{document}

LaTeXML seems to be neutralizing two rows for a given \nonumber?
The second example is an even more interesting mix, as the resulting table gets two <tbody> containers, and the deposited (2) tag is floated to the top row - which has the x with \nonumber.

I'm not sure if we have regressed or this was also a problem in pre-0.8.8 releases. I've encountered it during my latest contracting work.