Read-only user query in Oracle

As @Jeffrey pointed out, ALL_* view is not useful in your case. You should use DBA_* views because they show the records for all owners of the job objects.

The following sequence works just fine for me:

$ sqlplus /nolog

SQL> connect / as sysdba
Connected.

SQL> select distinct owner from dba_scheduler_job_run_details;

OWNER
------------------------------
EXFSYS
SPONGEBOB
SYS

SQL> create or replace view sys.jcaf as
  2  select * from dba_scheduler_job_run_details
  3  where owner = 'EXFSYS';    
View created.

SQL> grant select on sys.jcaf to spongebob;    
Grant succeeded.

SQL> create public synonym jcaf_v for sys.jcaf;    
Synonym created.

SQL> connect spongebob/passwd    
Connected.

SQL> select distinct owner from jcaf_v;

OWNER
------------------------------
EXFSYS

Based on Phil's test case I backed up the the production database using exp.

I dropped the editioned user, recreated them and imported the data with no issues. The user had views and packages which were versioned but as long as you set the edition to the most current one you are good to go.

This query showed that the recreated user was not using editioning

SELECT username,editions_enabled
FROM   dba_users
WHERE editions_enabled = 'Y';