API method spooler_log.start_new_file() deactivates the log category {scheduler}

Description
After executing the spooler.log.start_new_file() method the scheduler.log file no longer have log entries with the log categorie scheduler

Desired behaviour
After invoking spooler.log.start_new_file() API method the actual log categories should be valid with the new log file

To reproduce start a job. Check the scheduler.log. There will be lines with ..

{scheduler} at the end of the log. Also when using JOC you will see those lines. Then execute the rotate_log job that is located in sos/housekeeping. This job invoke the spooler.log.start_new_file() API method. Start the test job again or do some action with JOC. No log entries with ..{scheduler}

will be in the log