What were you trying to do that didn't work?

What is the impact of this issue to you?

Please provide the package NVR for which the bug is seen:

v10.10.0-rc1-4-gc4d6bd3bf5

Reproduced on libvirt-10.9.0-1.fc42.x86_64 as well

How reproducible is this bug?:

100%

Steps to reproduce

➜  ~ virsh domcapabilities|virt-xml-validate -
Relax-NG validity error : Extra element cpu in interleave
-:25: element cpu: Relax-NG validity error : Element domainCapabilities failed to validate content
- fails to validate

The domaincaps XML: domcaps.xml

Expected results

No error

Actual results