cannot get locally built xen packages to install in dom0

[Jake]

hi list,

i made some modifications to the vmm-xen component of qubes and am
having difficulty testing the built packages.

i have copied the packages to dom0, but attempts to dnf update with the
newly built packages, e.g. xen-libs give the error

"problem: the operation would result in removing the following protected
packages: qubes-core-dom0"

i would appreciate it if someone can tell me how to go about updating
these packages so i can test them.

regards,

jake