Dear devs,
When using delimiter with \left...\right the italic correction between
the preceding letter and the delimiter is dropped. I've tried this with
a few fonts and all show the problem. For Libertinus Math the glyphs
even overlap.
MWE for mtxrun --script plain (TeX Live 2022)
%\input luaotfload.sty
\font\mathfont="file:LibertinusMath-Regular.otf:mode=base;script=math" at
10pt
\textfont0=\mathfont
\textfont2=\mathfont
\Umathcodenum`f="1D453
\protected\def\langle{\Udelimiter"4"0"27E8\relax}
\protected\def\rangle{\Udelimiter"5"0"27E9\relax}
$f\rangle$
\nulldelimiterspace=0pt
$\left.f\right\rangle$
\bye
Cheers, Henri
