Hello Jeremie, > I did some tests based on Debian's TeX Live 2018. I could reproduce the > difference with Patrick's plain LuaTeX example: with luatex 1.07.0, the > example gives "torn by" on one line. With luatex compiled from the latest > trunk version, there is a linebreak after "torn".
... > I tried reverting to "--enable-dump-share" on the latest trunk branch, and > indeed I then get the same output as with luatex 1.07.0... very interesting. This fixes the minimal / plain TeX example I have made but has no effect on my other example (which is in the original post, but not usable with plain TeX). So I need to find another example that shows the effect again... Patrick (who is very grateful for any advance on this issue)
