[luatex] nested ifincsname broken in luatex

David Carlisle d.p.carlisle at gmail.com
Thu May 4 10:12:55 CEST 2017

the following plain tex file

\ifcsname T\ifincsname e\else \hbox{e}\fi X\endcsname\fi

works in etex/pdftex/xetex but generates an error in luatex (tl2017 pretest)

ifincsname should be true in the implicit csname started by the outer


It is perhaps related to this tracker issue about ifincsname in nested
csname, but that one appears fixed,

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