Error when using more than two IDE devices on ISAPC - bootindex=2: Bus 'ide.2' not found

[xp5-org]

Describe the issue
When using more than two IDE devices with an ISAPC, the VM fails to power on with an error

Configuration

• UTM Version: 4.3.0
• macOS Version: 13.2 (22D49)
• Mac Chip (Intel, M1, ...): M1

Crash log
QEMU exited from an error: qemu-i386-softmmu: -device ide-hd,bus=ide.2,drive=driveA697529D-72E1-4876-8F1E-BA1864705902,bootindex=2: Bus 'ide.2' not found

Debug log
debug.log
isapc_4disk.zip
4disk_qemucommand.txt

I installed qemu and tested this same isapc vm with the following to confirm 1x CDROM and 3X disks IDE type are working on macos

% qemu-system-i386 --version
QEMU emulator version 8.0.0
Copyright (c) 2003-2022 Fabrice Bellard and the QEMU Project developers

qemu-system-i386 \
-cpu 486 \
-machine type=isapc \
-device ne2k_isa \
-vga cirrus \
-cdrom ~/Downloads/nt4.iso \
-device sb16 \
-drive file=D5767399-5AFE-44D9-9E9D-20D408C5DAC5.qcow2,format=qcow2 \
-drive file=A697529D-72E1-4876-8F1E-BA1864705902.qcow2,format=qcow2 \
-drive file=D5767399-5AFE-44D9-9E9D-20D408C5DAC5.qcow2,format=qcow2 \