[NTG-context] issue with linenotes and luatex-1.0.3

Dear list, I have a text with two kinds of linenotes (http://www.ousia.tk/hefes.tex). If I compile with latest beta (2017.02.23 18:37), I get wrong separation from body in many pages (http://www.ousia.tk/hefes.pdf). Only page 5 might be be right in this point. But if I use beta from 2017.01.27 14:39 (which comes with luatex-1.0.0 [at least in Linux 32bit]), linenote separation from body is much better (http://www.ousia.tk/hefes-nospacebefore.pdf). The spacebefore option from \setupnotes was intended to improve the situation. No matter whether \setupnotes is used or not, luatex-1.0.3 gets wrong results. Could anyone confirm the bug or tell me what I’m doing wrong? Many thanks for your help, Pablo -- http://www.ousia.tk