DNS Cache Bug

[MIAONECYAN]

If I specify the difference Upstream DNS Servers for the Client, The DNS Cache was not working.

Here is my environment:

Static hostname: VM-0-9-debian
Icon name: computer-vm
Chassis: vm 🖴
Virtualization: kvm
Operating System: Debian GNU/Linux 12 (bookworm)
Kernel: Linux 6.1.0-13-amd64
Architecture: x86-64
Hardware Vendor: Tencent Cloud
Hardware Model: CVM
Firmware Version: seabios-1.9.—qemu-project.org