runLogTSafe prevents further usage of the logger

[noteed]

In the "Logging with ThreadId" README example, the call to runLogTSafe at https://github.com/winterland1989/monad-log/blob/master/README.md?plain=1#L92 seems to prevent further usage of the logger.

Specifically, the line "This is simple log 2" are not logged after the first line.

This seems to be true for the example which is using LogStdout, and also if I change it to use LogFileNoRotate.

Note: I've had to add a call to threadDelay an the end of the example so the program doesn't exit right away. I've compiled the program with ghc --make -threaded.

When replacing runLogTSafe with runLogT', I can see the missing logs.

In case it matters, I've used GHC 9.2.8 and fast-logger 3.1.2.