There is nothing to fix from ReaR point of view, the neutron team is testing a configuration change[1] in Rear to recalculate the FS geometry instead of copying it from the inconsistent source system. [1]: https://review.opendev.org/c/openstack/tripleo-ansible/+/886951
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (Release of components for Red Hat OpenStack Platform 17.1 (Wallaby)), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHEA-2023:4577