Unicode error with PGFPlotsX [BUG]

[RaulDurand]

Details

Using Plots with PGFPlotsX backend I get strange substitutions for some characters in the tex file. For example, this code

  plot(
        title = "Interpolação polinomial"
    )
  savefig("fig.tex")

generates a file fig.tex that contains:

\begin{axis}[point meta max={nan}, point meta min={nan}, legend cell align={left}, 
title={Interpola$ç$$ã$o polinomial} ...

As can be seen, in the title, some characters as ç and ã get surrounded by $. The resulting file cannot be included in the main tex file since I get errors like the one below when I try to compile with pdflatex.

Command \c invalid in math mode.

Is this a bug? Is there any setting in Plots.jl to left the title text without modification?

Backends

This bug occurs on ( insert x below )

Backend	yes	no	untested
gr (default)		x
pyplot		x
plotly			x
plotlyjs			x
pgfplotsx	x
inspectdr			x

Versions

Plots.jl version: v1.10.1
Backend version (]st -m): v1.2.10
Output of versioninfo(): Julia Version 1.5.1

[BeastyBlacksmith]

Honestly thats an issue of Latexify to work around you can wrap yout title in LaTeXString:

  plot(
        title = LaTeXString("Interpolação polinomial")
    )