partition marked for formatting when it shouldn't

[as]

During installation 24.04 chosen partition is marked by default as "format" (will be formatted) after choosing "leave formatted as ext4" and there is no way to change it.

While on 23.10 it works as expected, after choosing "leave formatted as ext4" partition is not marked as "format" (will be formatted).

User see two contradicting messages "leave as is" and "format" - and don't know what the result will be.

Version 23.10.1 allowed to install Ubuntu on partition with some data on it, without formatting. Version 24.04 seems format partition always.

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: subiquity (unknown)
ProcVersionSignature: Ubuntu 6.8.0-31.31-generic 6.8.1
Uname: Linux 6.8.0-31-generic x86_64
NonfreeKernelModules: zfs
ApportVersion: 2.28.1-0ubuntu2
Architecture: amd64
CasperMD5CheckResult: pass
CasperVersion: 1.498
CloudArchitecture: x86_64
CloudID: nocloud
CloudName: unknown
CloudPlatform: nocloud
CloudSubPlatform: seed-dir (/var/lib/cloud/seed/nocloud)
CurrentDesktop: ubuntu:GNOME
Date: Wed May 1 07:11:40 2024
DesktopInstallerRev: 171
LiveMediaBuild: Ubuntu 24.04 LTS "Noble Numbat" - Release amd64 (20240424)
ProcEnviron:
 LANG=C.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
 XDG_RUNTIME_DIR=<set>
SourcePackage: subiquity
Symptom: installer
UpgradeStatus: No upgrade log present (probably fresh install)