Warnings are displayed even for valid meta attributes.

In the version of pcs (0.12.2) included in RHEL 10.2, a warning is now displayed when invalid meta attributes are used in `https://redhat.atlassian.net/browse/RHEL-7673`.
Although a fix has been implemented, a warning is still being displayed even for valid meta attributes, as shown below. Is this expected behavior?
I am able to update the meta attributes of XML files by executing the command.

```
# cat Pacemaker_2_RHEL10.2.xml | grep migration-threshold


# pcs -f Pacemaker_2_RHEL10.2.xml resource defaults update migration-threshold=2
Warning: Defaults do not apply to resources which override them with their own defined values
Warning: Meta attributes of bundle / clone / group / resource are not validated
# cat Pacemaker_2_RHEL10.2.xml | grep migration-threshold


```

```
# cat Pacemaker_2_RHEL10.2.xml | grep allow-unhealthy-nodes

# pcs -f Pacemaker_2_RHEL10.2.xml resource meta storage-mon-clone allow-unhealthy-nodes=false
Warning: Meta attributes of bundle / clone are not validated
# cat Pacemaker_2_RHEL10.2.xml | grep allow-unhealthy-nodes

```