Error initializing module auth_ldap2

Install & Config
1

Ok, I switched away from ldap authentication a while ago, but I left the prosody configuration file (now removed).
The last couple updates I get this error from the package jitsi-meet-prosody (debian bullseye):

modulemanager       error       Error initializing module 'auth_ldap2' on 'focus.meet.wetron.es': /usr/lib/prosody/modules/ldap.lib.lua:245: attempt to call field 'unlock_globals' (a nil value)
stack traceback:
        /usr/lib/prosody/modules/ldap.lib.lua:245: in main chunk
        (...tail calls...)
        /usr/lib/prosody/modules/mod_auth_ldap2/mod_auth_ldap2.lua:14: in main chunk
        [C]: in function 'xpcall'
        /usr/lib/prosody/core/modulemanager.lua:183: in function 'do_load_module'
        /usr/lib/prosody/core/modulemanager.lua:261: in function 'load'
        /usr/lib/prosody/core/usermanager.lua:67: in function 'initialize_host'
        .../share/jitsi-meet/prosody-plugins/mod_roster_command.lua:41: in function 'subscribe'
        .../share/jitsi-meet/prosody-plugins/mod_roster_command.lua:143: in function <.../share/jitsi-meet/prosody-plugins/mod_roster_command.lua:135>
        [C]: in function 'xpcall'
        /usr/lib/prosody/core/modulemanager.lua:325: in function 'call_module_method'
        /usr/bin/prosodyctl:1360: in function 'func'
        /usr/lib/prosody/util/async.lua:127: in function </usr/lib/prosody/util/async.lua:125>

I removed the ldap.cfg.lua symlink in /etc/prosody/conf.d and the error went away (obviously), but I suppose it wouldn’t work if I really needed to authenticate against ldap.

# dpkg -l | grep prosody
ii  jitsi-meet-prosody                   1.0.6776-1                         all          Prosody configuration for Jitsi Meet
ii  prosody                              0.11.9-2+deb11u2                   amd64        Lightweight Jabber/XMPP server
ii  prosody-modules                      0.0~hg20210130.dd3bfe8f182e+dfsg-2 all          Selection of community modules for Prosody

jitsi-meet-prosody is from the jitsi.org repository while prosody and prosody modules come from debian, so maybe the bug is there?

2

The error arises in the ldsp module, which we don’t supply or maintain.

3

Yes, I see that, and the problem doesn’t affect me (I’m no longer using ldap authentication), but maybe somebody knows the cause/solution (when I was using ldap authentication the module worked).
I see that the function prosody.unlock_globals is defined in /usr/lib/prosody/util/startup.lua.