Decimal separator in string()

[Sergiy Radyakin]

I've noticed that the string() function and it's strofreal() counterpart are ignoring the default decimal separator setting in Stata 13.0/Windows. I wonder if this was intended or is a bug?

clear all
version 13.0
set dp comma
display c(version_rng)
display 2/3
display string(2/3)
mata 2/3
mata strofreal(2/3)
display string(2/3, "%9,7f")

Specifying the comma decimal format explicitly helps in the case of string() and strofreal().
Is there a similar workaround for real() and strtoreal()?