Speech failure in Baratinoo engine after CHAR symbol expansion

[Colomban Wendling]

Hello everybody,

The Baratinoo engine expects SSML for TEXT messages.  This works fine, 
unless a CHAR symbol expansion happened that lead to multi-character 
representation[^1].  Since 2dcb3e47625856c8092fa1a9fd6f6591486e6e26 it 
leads to transforming the CHAR message into a TEXT one, but it doesn't 
seem to get it's <speak></speak> tags.  This makes the baratinoo module 
very unhappy.

So my question is basically: where should I fix it?

Should the server wrap the TEXT message with SSML as other messages are?
Or should the module be forgiving and not reject input that don't have a 
root tag (or no tag at all)?

Thanks,
Colomban

PS: admittedly I only tested with 11.4 because my setup with the 
baratinoo sythesizer doesn't make it easy to test master, and I didn't 
see any recent changes that would affect this.  If I missed it and it 
did get fixed, I apologize.

[^1]: here I'm seeing it with "y" that expands to "igrèque" in French, 
to work around some sythesizers that would pronounce it /i/