Kitty regression with emoji rendering

**Describe the bug** Forwarding debian bug report https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1140411 Kitty version - 0.47.3 Subject: kitty: Kitty 0.47.3-1 doesn't show my duck anymore: 🦆 > On 06/20/2026 3:47 AM IST Wesley Schwengle: > > > Package: kitty > Version: 0.47.0-3 > Severity: important > X-Debbugs-Cc: wesley@schwengle.net > > Dear Maintainer, > > I use a rather quircky duck in my prompt as a separator and it suddenly stopped > working for one reason or the other. I first thought it had to do with my font, > so I did all the things you would think of: > > fc-list :family="CommitMono" > sudo fc-cache -fv > fc-cache -fv > > I also grabbed a newer version of CommitMono, with these settings: > > { > "alternates" : { > "cv01" : false, > "cv02" : false, > "cv03" : false, > "cv04" : false, > "cv05" : false, > "cv06" : false, > "cv07" : false, > "cv08" : false, > "cv09" : false, > "cv10" : false, > "cv11" : false > }, > "features" : { > "ss01" : true, > "ss02" : true, > "ss03" : true, > "ss04" : true, > "ss05" : true > }, > "italic" : false, > "letterSpacing" : 0, > "lineHeight" : 1, > "weight" : 400 > } > > To no avail. > > When you have Commit Mono installed (or perhaps any other nerdfont) from > https://commitmono.com/ and open the Unicode menu (ctrl+shift+u on my system) > and you search by name (f2) for duck and select the first option, U+1f986, you > would see a nice little ducky. > > With kitty 0.47.3-1 you no longer have that. It becomes a small red-ish dot. > I reverted back to kitty 0.47.0-3 and the duck re-appears. > > I marked the bug as important, as I am a bit cautious as I don't want to bump > it to serious, although I am convinced it might be a serious bug. > > On 06/20/2026 3:59 AM IST Wesley Schwengle wrote: > > > I use a rather quircky duck in my prompt as a separator and it suddenly stopped > > working for one reason or the other. I first thought it had to do with my font, > > so I did all the things you would think of: > > More emojis are breaking: > > 🦦 / 🔊 / 🫂 / 🪖 > > I think the bug has to become serious. >