Unable to create another ldap Account if another account is linked to ldap group in the same domain

##### ISSUE TYPE

* Bug Report

##### COMPONENT NAME

~~~
ldap
~~~

##### CLOUDSTACK VERSION
~~~
4.19
~~~

##### CONFIGURATION

Advanced Networking, Domain tree with multiple subdomains

##### OS / ENVIRONMENT

RHEL 9.3
VMware 8.0c (8.0.0.3)
LDAP 389 Directory Server

##### SUMMARY

If I create ldap account in domain with ldapCreateAccount, then link this account to ldap group with linkAccountToLdap, I'm not able to create another account in the same domain. I got error:
CloudStack error: HTTP 534 response from CloudStack
{
"createaccountresponse": {
"cserrorcode": 9999,
"errorcode": 534,
"errortext": "No LDAP user exists with the username of test_user",
"uuidList": []
}
}

If I create multiple accounts with ldapCreateAccount first, then I'm able to link all these accounts to ldap groups with linkAccountToLdap. But again, not able to create any other new ldap accounts

##### STEPS TO REPRODUCE

~~~
cs --post ldapCreateAccount username=test_admin account='Test admins' accounttype=2 domainid=6xxxxxx0e-d170-48ea-a9bf-90fexxxxx122
cs --post linkAccountToLdap account='Test Admins' accounttype=2 domainid=6xxxxxx0e-d170-48ea-a9bf-90fexxxxx122 ldapdomain='cn=test admins,cn=test,ou=groups,dc=my,dc=domain,dc=com' type=GROUP
cs --post ldapCreateAccount username=test_users account='Test users' accounttype=0 domainid=6xxxxxx0e-d170-48ea-a9bf-90fexxxxx122
~~~

##### EXPECTED RESULTS

~~~
Create another account in ldap and link it to another ldap group
~~~

##### ACTUAL RESULTS

~~~
CloudStack error: HTTP 534 response from CloudStack
{
"createaccountresponse": {
"cserrorcode": 9999,
"errorcode": 534,
"errortext": "No LDAP user exists with the username of test_user",
"uuidList": []
}
}
~~~

在所描述的 CloudStack 4.19 LDAP 配置中，使用 ldapCreateAccount，然后使用 linkAccountToLdap 重现该问题，接着检查 LDAP 账户创建和组链接的入口点。完成的标准是：能够在同一域中创建第二个账户，并将其链接到另一个 LDAP 组，且不出现 HTTP 534 错误；pull request #13945 已经打开。

由索引模型根据 Issue 内容生成。