Can't create LDAP entry -- undefined attribute type

Tested and this patch works for me.
https://git.drupalcode.org/project/ldap/-/merge_requests/20.patch

Hi,
I am actually using LDAP module : Machine name: ldap_user Version : 8.x-4.6
I encountered this issue and applied 20.patch with success.
I can read that this patch have been merged in september 2021 => is there any regression ?
What is the exact version which was merged with that patch in 2021 ?
Thx

MR !20 seems to work. I have a similar mapping to @chanelwheeler
However in my current setup now the ldap add seems to be triggered up to three time.
From the logs:

server ldap_server exception: Could not add entry "uid=30006,ou=xxxx,dc=xxxx,dc=xxxx,dc=xxxx": Already exists

Difficult to say if this is related to the changes.