KConfig "ItemAccessors doesn't work with signals" bug MWE

README.md

Instructions to reproduce:

• mkdir build
• cd build
• cmake ..
• make

CMakeLists.txt

cmake_minimum_required(VERSION 2.8.12)

set(KF5_MIN_VERSION "5.15.0")
set(ECM_MIN_VERSION "1.8.0")

find_package(ECM ${ECM_MIN_VERSION} REQUIRED NO_MODULE)
set(CMAKE_MODULE_PATH ${ECM_MODULE_PATH} ${ECM_KDE_MODULE_DIR})

include(KDEInstallDirs)

find_package(KF5 ${KF5_MIN_VERSION} REQUIRED COMPONENTS Config ConfigWidgets)

include_directories("${CMAKE_CURRENT_BINARY_DIR}/..")

set(settings_SRCS
  main.cpp
)
kconfig_add_kcfg_files(settings_SRCS GENERATE_MOC settings.kcfgc)

add_executable(settings ${settings_SRCS})

target_link_libraries(settings
  KF5::ConfigCore KF5::ConfigWidgets
)

settings.kcfg

<?xml version="1.0" encoding="UTF-8"?>
<kcfg xmlns="http://www.kde.org/standards/kcfg/1.0"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://www.kde.org/standards/kcfg/1.0
                          http://www.kde.org/standards/kcfg/1.0/kcfg.xsd" >

  <kcfgfile name="settingsrc" />

  <group name="Settings">

    <entry name="example" type="Bool" />

  </group>

</kcfg>

settings.kcfgc

File=settings.kcfg
ClassName=Settings
ItemAccessors=true
Mutators=true
GenerateProperties=true