Looking at the changelog, it appears the fix for this was released in August to the self-hosted-23.03 stable PPA.
landscape-client (23.08-0ubuntu1) mantic; urgency=medium
* New upstream release 23.08 ... - Broker is able to bootstrap the landscape-client folder (LP: #1868730) ...
-- Kevin Nasto ... Thu, 17 Aug 2023 13:41:21 -0500
--- landscape-client | 23.08+git6296-0ubuntu0 | landscape-23.03 | bionic | amd64 landscape-client | 23.08+git6296-0ubuntu0 | landscape-23.03 | focal | amd64 landscape-client | 23.08+git6296-0ubuntu0 | landscape-23.03 | jammy | amd64 ---
Looking at the changelog, it appears the fix for this was released in August to the self-hosted-23.03 stable PPA.
landscape-client (23.08-0ubuntu1) mantic; urgency=medium
* New upstream release 23.08
...
- Broker is able to bootstrap the landscape-client folder (LP: #1868730)
...
-- Kevin Nasto ... Thu, 17 Aug 2023 13:41:21 -0500
--- 0ubuntu0 | landscape-23.03 | bionic | amd64 0ubuntu0 | landscape-23.03 | focal | amd64 0ubuntu0 | landscape-23.03 | jammy | amd64
landscape-client | 23.08+git6296-
landscape-client | 23.08+git6296-
landscape-client | 23.08+git6296-
---