Cannot boot deepin-15.7-amd64.iso

[probonopd]

Getting "attempted to kill init"

menuentry "deepin-15.7-amd64.iso - debian-live 0" --class debian {
        iso_path="/boot/iso/deepin-15.7-amd64.iso"
        search --no-floppy --file ${iso_path} --set
        live_args="for-debian-live-3 --> findiso=${iso_path} live-config.keyboard-layouts=de live-config.locales=en_US.UTF-8 live-config.timezone=Europe/Berlin live-config.username=me live-config.hostname=host max_loop=256"
        custom_args=""
        iso_args="boot=live components union=overlay"
        loopback loop ${iso_path}
        linux (loop)/live/vmlinuz ${live_args} ${custom_args} ${iso_args}
        initrd (loop)/live/initrd.lz
}

[probonopd]

Reported upstream at linuxdeepin/developer-center#767.