[LyX/master] Fix endless loop when breaking text

[Richard Kimberly Heck]

On 12/9/21 13:18, Jean-Marc Lasgouttes wrote:
> commit dcef1a9cad5173158e1aeef96bd4e57ad20a64ca
> Author: Jean-Marc Lasgouttes <lasgouttes at lyx.org>
> Date:   Thu Dec 9 16:43:16 2021 +0100
>
>      Fix endless loop when breaking text
>      
>      For some reason, Qt can break strings before the first character
>      (although we try to prevent that). The code was not prepared to that,
>      now it is.
>      
>      Remove a forgotten debug statement.

Is that one worth keeping, with the FONT debug key or something? It's 
been useful once....

Riki