Combining character not appearing over mosh (but it does over ssh)

[mml]

Going from Macbook Air (Sonoma 14.1) running 1.4.0
to amd64 workstation (Debian 12 Bookworm) running 1.4.0

Terminal emulator is iTerm2 3.4.21

Over ssh...

Over mosh...

The character in this example is U+20F0 COMBINING ASTERISK ABOVE if that makes a difference.

Cut-and-paste friendly repro: perl -le 'binmode STDOUT, ":utf8"; print "({Kleene star} \x{20f0})"'

[achernya]

What is the value of $TERM in both cases? My suspicion is this is wcwidth not knowing this character under mosh.

[mml]

What is the value of $TERM in both cases? My suspicion is this is wcwidth not knowing this character under mosh.

It's xterm-256color in all cases (including on the local Mac).

[achernya]

Yeah it's probably wcwidth then. Probably a duplicate of #1001 and friends.