How to send DHCP server a different hostname than the machine's static host name?

I'm using an at-home-type wireless router as the DHCP server for my desktop, with said router's management console showing the host names of the connected machines. If I put send host-name "AAA"; into dhclient.conf and my desktop has no static hostname then the router will show the hostname as "AAA". However, if I then set the desktop's static hostname to "BBB" the router will show the hostname as "BBB", even though I want to stay as "AAA". I tried using send dhcp-client-identifier "AAA";, but that confused the router so much it forgets any hostname and just shows the desktop's MAC address.

If it makes any difference, I'm using Fedora 24, and dhclient is launched/managed by NetworkManager.

Yes, I know there's no technical reason to give my at-home desktop a static hostname, nor for the router to display a different hostname. I'm just weird and finicky about such things.

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