The workers copied what zmDbDo() did before #5197: hold the Logger
pointer across a query and set the database level to NOLOG around it.
#5197 removed that. The workers now fetch and log, as the threads that
still log during a reload do (the dbQueue thread, the stream socket
threads), and the comment names those.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Four threads log the way zmDbDo() does (fetch the Logger, change its
database level, log, restore the level) while the main thread reloads the
logger 300 times. With the reload as logTerm(); logInit(), AddressSanitizer
reports a heap-use-after-free; with logReload() the instance stays valid.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
