Do we need to register again a custom schema after the upgrade from 12.1.3 to 12.2 ?

The upgrade document(Oracle® E-Business Suite Upgrade Guide) makes me doudt about how to manage custom schemas.

The section "Mandatory Steps for Custom Schema Upgrade for 12.0 / 12.1" says "For the custom products that already exist, you must run adsplice on the Run File system to lay down the file system"

But everything indicates that my custom schema is already registered after the upgrade and activating Online Patching.

select application_id from fnd_application where application_short_name = 'XXQA';

20003

grep -i xxqa $CONTEXT_FILE

<XXQA_TOP oa_var="s_xxqatop" oa_type="PROD_TOP" oa_enabled="FALSE">/progiciel/oracle/UNA5/fs1/EBSapps/appl/xxqa/12.0.0</XXQA_TOP>