Two real contact names pulled the purge preview's reason lanes out of line, and the
Contacts list and chat picker would do the same, since all three pad names through one
measurement.
"Tech-Info 👨🏻💻" carries a skin tone. Rich measures the modifier zero, as the
terminal draws it; wcwidth gives it two, so prompt_toolkit reserved four cells for a
two-cell glyph. The cache now measures a modifier zero at either calibration, which lets
prompt_toolkit fold it into the cell before it the way it folds a variation selector,
and the cluster merge carries it inside a joined run.
"That's So Fetch 🏴" is a pirate flag cut at the name's byte limit, just past its
joiner. Both authorities folded whatever followed a joiner into the glyph, and here
that is the lane's padding space, so the name measured a cell short. A joiner now joins
only a pictograph. On the width-2 path Rich's own loop is wrapped for this one case; its
table is still left alone.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Jean-Pierre MartineauandClaude Opus 5
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