In https://bugzilla.redhat.com/show_bug.cgi?id=2088196#c7 myself and validated that the fix proposed to the Ironic/Wallaby branch https://review.opendev.org/c/openstack/sushy/+/842462 fixes the problem. This fix adds a missing backport of this change: https://review.opendev.org/c/openstack/sushy/+/818110 OCP 4.11 and 4.10 releases use Ironic Yoga release which already contains this code: https://opendev.org/openstack/sushy/src/branch/stable/yoga/sushy/resources/base.py#L604 This means it is not prone to the issue affecting 4.8 and 4.9 (which use older Ironic branches) and hence does not require a fix.
Further with regards to verification of this BZ, please see Manuel's comment in the 4.8 BZ https://bugzilla.redhat.com/show_bug.cgi?id=2088196#c12 confirming OCP 4.10 and 4.11 were not affected by this BZ.
Closing with CURRENTRELEASE as this is a no-op BZ which is not to be included in Errata.