I raised the issue on ubuntu-l10n-fr and lp-l10n-fr.
We will see if someone propose something better and/or if I'm the only one that fear confusion between [nbsp] and [nnbsp].
Otherwise, I also prefer [nbthin] because the French for NNBSP is "espace fine insécable" which literally (word for word) translate to "no-break thin space".
I raised the issue on ubuntu-l10n-fr and lp-l10n-fr.
We will see if someone propose something better and/or if I'm the only one that fear confusion between [nbsp] and [nnbsp].
Otherwise, I also prefer [nbthin] because the French for NNBSP is "espace fine insécable" which literally (word for word) translate to "no-break thin space".