\NewDocumentCommand \parentcommand {s m m m}
{
   \IfBooleanTF{#1}
      {
         \firstcommand*{#2}{#3}{#4}
         \secondcommand*{#2}{#3}{#4}
      }{
         \firstcommand{#2}{#3}{#4}
         \secondcommand{#2}{#3}{#4}
      }
}

\starttext
\expression sqrt(17)*sin(pi/4)+3^(1.5)\relax
\stoptext

\documentclass[border=10pt]{standalone}
\usepackage[siunitx, RPvoltages]{circuitikz}
\begin{document}

\pgfcircversion{} on \pgfversion
\begin{circuitikz}[american]
    \draw (0,0) to [
        R=R,
        v=V,
        i=I,
        f=F,
        ] (3,0);
\end{circuitikz}
\end{document}

! Package tikz Error: Giving up on this path. Did you forget a semicolon?.

See the tikz package documentation for explanation.
Type  H <return>  for immediate help.
 ...

l.12         ] (3,0)
                    ;
?
! Undefined control sequence.
\pgfutil@next ...flinewidth =\tikzscope@linewidth
                                                  \tikz@path@do@at@end
l.12         ] (3,0);

?

I should have done separate commits, I know.

\def\pgfcirc@if@has@i{%
    \ifpgfcirc@has@i
        \expandafter\pgfutil@firstoftwo
    \else
        \expandafter\pgfutil@secondoftwo
    \fi}

git mv tex tex-old
mkdir -p tex/latex/
git mv tex-old/ tex/latex/circuitikz