strange interaction between episemi and flat

[eroux]

The following file shows the bug:

\documentclass[12pt]{article}
\usepackage{gregoriotex}
\begin{document}

\gabcsnippet{(c4) áb(h_g_)ne(ixi)get(h) áb(h_g_)ne(i)get(h)}

\end{document}

the output is:

where one episemus mysteriously disappears before the flat...

[eroux]

One workaround is apparently:

áb(hV_!g_)ne(ixi)get(h)

[henryso]

Looking at the gregorio executable output, I don't think this is a C bug.

[eroux]

oh ok, that's even more mysterious

[henryso]

I suspect it's related to corruption of temp registers.

[henryso]

I think this is a duplicate of #1379, which is fixed in the latest gregorio. Did you try with that version?

[henryso]

I have confirmed that this seems to work with the latest gregorio. If there are no objections, I will close this as duplicate.