[NTG-context] Different behavior of \clf_lastypos vs \clf_lastxpos

Hi, I am trying to debug an unexpected behavior with tikz reported on tex.se: https://tex.stackexchange.com/q/696136/323 The attached file shows what is going wrong (without using tikz). For some reason, there is an extra \relax written to file after `\the\numexp\clf_lastypos\relax` (there is no such relax after `\the\numexpr\clf_lastxpos\relax`). The test.pgf file is: \macro {A}{23930350}{43358454.0\relax } \macro {B}{39564274.0\relax }{14083538} Any ideas on why is the extra \relax written after lastypos and how to fix that? Aditya