Uppercase "Y" is not accepted when aptitude is asking a yes/no question

I was updating my server with aptitude as I normally do. It finished and went back into the aptitude UI. I pressed Q to quit, and it asked if I really wanted to quit, as it normally does.

I kept pressing Y but it was ignoring the input. It took another minute before I realized caps lock had been enabled. Once I turned off caps lock, it accepted the Y key and exited.

I think it should have accepted the uppercase letter. It accepted the uppercase Q for quit, it should have accepted the Y as well.

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: aptitude 0.8.13-3ubuntu1
ProcVersionSignature: Ubuntu 6.1.0-1012.12-oem 6.1.25
Uname: Linux 6.1.0-1012-oem x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu82.4
Architecture: amd64
CasperMD5CheckResult: pass
Date: Fri May 19 17:02:35 2023
InstallationDate: Installed on 2022-11-02 (198 days ago)
InstallationMedia: Ubuntu-Server 20.04.5 LTS "Focal Fossa" - Release amd64 (20220831)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 LANG=C.UTF-8
 SHELL=/bin/bash
SourcePackage: aptitude
UpgradeStatus: Upgraded to jammy on 2022-11-21 (179 days ago)