longtable v4.20 breaks the ltcaption package

[axelsommerfeldt]

Brief outline of the bug

The longtable* environment offered by the ltcaption package is working fine with longtable v4.19 but not with v4.20.

See also: https://gitlab.com/axelsommerfeldt/caption/-/issues/177

Minimal example showing the bug

\RequirePackage{latexbug}       % <--should be always the first line (see CONTRIBUTING)!
\documentclass{article}

\usepackage{longtable,ltcaption}

\begin{document}

\begin{longtable*}{r}
Hello\\
\end{longtable*}

\begin{longtable}{r}
Hello\\
\caption{A table}\\
\end{longtable}
  
\end{document}

Log file (required) and possibly PDF file

test.log