[Bug]: SUBSTR value is null when attribute comes from parent

[depouill]

Is there an existing issue for this?

• I have searched the existing issues

Environment

- OS: docker image (from 2.3.9-2)
- PHP: 8.4.17
- LDAP Server: openldap

PLA Code

Github checkout

PLA Version

2.3.9-2

Current Behavior

Search filter doesn't return true bool value from sub_str_rule when attribute is a child from parent which has SUBSTR value.

For example:

attributeTypes: ( 2.5.4.4 NAME ( 'sn' 'surname' ) DESC 'RFC2256: last (family)
name(s) for which the entity is known by' SUP name )

Attribut 'sn' doesn't have sub_str_rule to true, 'name' has it.

Expected Behavior

'sn' attribute which is child from name should return sub_str_rule=true

Steps To Reproduce

try search by sn or by name

Relevant log output

Anything else?

No response