Bug#1018206: luatex loses or changes text when discretionaries with priorities are used

[Peter Mueller]

found 1018206 texlive-binaries/2022.20220321.62855-1
thanks
I've just tested on my system, and the bug is still present in the Debian 
package with luatex 1.15.0 and indeed fixed in TeXLive 2023 upstream with 
luatex 1.17.0.