Line break elements omitted converting mathml to latex

[mandasaka]

Hello there. I found there is an issue about converting mathml to latex.When the mathml marks contain a line break like

<mspace linebreak="newline"/>

. There is no corresponding line break in the latex marks, so the latex marks will not break the line.
Will you fix it? THX!

[jgm]

This is tricky, since there's no natural automatic translation for a line break in LaTeX math, which generally only supports line breaks in certain special environments. The proper handling of this will depend on the case; in some cases a gathered environment could be used, for example.