LuaLaTeX and polyglossia 1.47

Question

When I use Hebrew with polyglossia 1.47 and LuaLaTeX on TeXLive 2019, I get an error message that I don't get with polyglossia 1.46. Here is my MWE:

%!TEX TS-program = lualatex
%!TEX encoding = UTF-8 Unicode

\documentclass{article}
\usepackage{fontspec}
\newfontfamily\hebrewfont{SBL Hebrew}[Script=Hebrew]
\usepackage{polyglossia}
\setdefaultlanguage[variant=us]{english}
\setotherlanguage{hebrew}

\begin{document}
Text in English and \texthebrew{עברית}. Text...
\end{document}

The messages I get

Package polyglossia Warning: Hebrew is not supported with LuaTeX.
(polyglossia)                I will proceed with the compilation, but
(polyglossia)                the output is not guaranteed to be correct
(polyglossia)                and may look very wrong. on input line 6.



(/usr/local/texlive/2019/texmf-dist/tex/lualatex/luabidi/luabidi.sty
(/usr/local/texlive/2019/texmf-dist/tex/lualatex/luabidi/luabidi-footnotes.def)
) (/usr/local/texlive/2019/texmf-dist/tex/latex/polyglossia/hebrewcal.sty
(/usr/local/texlive/2019/texmf-dist/tex/latex/polyglossia/cal-util.def))
Setting \if@calendar@hebrew
(/usr/local/texlive/2019/texmf-dist/tex/latex/polyglossia/babel-hebrewalph.def)

! Too many }'s.
l.120   \fi}
          %
! Extra \fi.
l.121 \fi