[luatex] interline penalty for 2 line paragraphs

[David Carlisle]

Hi, another oddity in the dev build,

given


\tracingonline1
\tracingoutput1
\showboxdepth10
\showboxbreadth10

\message{\the\interlinepenalty, \the\clubpenalty, \the\widowpenalty}

x\hfill\break y

\bye


pdftex and luatex 0.95 give an interline penalty of 300 (= club + widow)


...\glue(\rightskip) 0.0
..\penalty 300
..\glue(\baselineskip) 7.69446


but 0.98.4 gives a penalty of 156 ??


...\glue(\rightskip) 0.0
..\penalty 156
..\glue(\baselineskip) 7.69446


David