openstack client role doesn't treat case insensitive users correctly starting v7.3.0

Historically Openstack treated some types of users, e.g. LDAP users as case-insensitive.
Starting release 2025.1 openstack client stopped doing so.

e.g. I have a LDAP user M012345.
Before 2025.1 it was possible to use the commands below and they both would work interchangeably:
`
openstack role add --user m012345 --user-domain somedomain --domain somedomain somegroup
openstack role add --user M012345 --user-domain somedomain --domain somedomain somegroup
`

but starting 2025.1 when openstack switched for that command from keystone-client to openstacksdk, e.g. [1],
it doesn't work for m012345, but works for M012345.
here is the part of the logs with trace [2] of the command with smaller letter and --debug.
It can be seen that Keystone still returns the user M012345 even though m012345 was requested, but it's just this version of openstack client can't find the user.

[1]
https://review.opendev.org/c/openstack/python-openstackclient/+/929712

[2]
GET call to identity for https://<keystone-url>/v3/users/m012345?domain_id=13a78af2e7e044afbf841a299c0cb98b used request id req-660f005f-0c55-4f96-a0de-9b85410ce04b

REQ: curl -g -i -X GET "https://<keystone-url>/v3/users?domain_id=13a78af2e7e044afbf841a299c0cb98b&name=m012345" -H "Accpt: application/json" -H "User-Agent: openstacksdk/4.4.0 keystoneauth1/5.10.1 python-reuests/2.32.3 CPython/3.12.3" -H "X-Auth-Token: {SHA256}<removed>"

https://<keystone-url>:443 "GET /v3/users?domain_id=13a78af2e7e044afbf841a299c0cb98b&name=m012345 HTTP/1.1" 200 498

RESP: [200] Connection: keep-alive Content-Length: 498 Content-Security-Policy: script-src 'self'; object-src 'self' Content-Type: application/json Date: Fri, 12 Sep 2025 17:50:45 GMT Strict-Transport-Security: max-age=31536000; includeSubDomains Vary: X-Auth-Token X-Content-Type-Options: nosniff X-Frame-Options: deny X-Permitted-Cross-Domain-Policies: none X-XSS-Protection: 1; mode=block x-openstack-request-id: req-f35700ac-a6ee-44e1-ac2a-b24ab4ddf709

RESP BODY: {"users": [{"id": "39a0b83de97a944ada3395a3adc1b677281076b4fa9562f60ac26059b8497bb5", "name": "M012345", "enabled": true, "options": {}, "password_expires_at": null, "domain_id": "13a78af2e7e044afbf841a299c0cb98b", "links": {"self": "https://<keystone-url>/v3/users/39a0b83de97a944ada3395a3adc1b677281076b4fa9562f60ac26059b8497bb5}}], "links": {"next": null, "self": "https://<keystone-url>/v3/users?domain_id=13a78af2e7e044aff841a299c0cb98b&name=m012345", "previus": null}}

GET call to identity for https://<keystone-url>/v3/users?domain_id=13a78afe7e044afbf841a299c0cb98b&name=m012345 used request id req-f35700ac-a6ee-44e1-ac2a-b24ab4ddf709

Traceback (most recent call last):

  File "/var/lib/openstack/lib/python3.12/site-packages/openstackclient/identity/v3/role.py", line 89, in _find_sdk_id

    resource = find_command(

               ^^^^^^^^^^^^^

  File "/var/lib/openstack/lib/python3.12/site-packages/openstack/identity/v3/_proxy.py", line 922, in find_user

    return self._find(

           ^^^^^^^^^^^

  File "/var/lib/openstack/lib/python3.12/site-packages/openstack/proxy.py", line 544, in _find

    return resource_type.find(

           ^^^^^^^^^^^^^^^^^^^

  File "/var/lib/openstack/lib/python3.12/site-packages/openstack/resource.py", line 2280, in find

    raise exceptions.NotFoundException(

openstack.exceptions.NotFoundException: No User found for m012345