LDAP synchronization through openldap after upgrade to 7.6 not working

LDAP synchronization through openldap after upgrade to 7.6 not working

 After upgrading to 7.6 we can no longer synchronize users with LDAP.

The query looks the same as in 7.5.0 Build 7512

FAILURE :Domain Controller saved successfully. But error occurred while trying to connect with LDAP Server - Please check your inputs

We have a testsystem running 7.5.0 Build 7512 and it works fine.

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