Why fatal log throw object.Error@(0) on console?

[Suliman via Digitalmars-d-learn]

import std.stdio;
import std.experimental.logger;

void main()
{
        sharedLog = new FileLogger("New_Default_Log_File.log");
        fatal("Fatal error: ");
}

All other log-levels write as expected log files, but `fatal` 
throw on console:

app.exe

object.Error@(0): A fatal log message was logged
----------------
0x0041291E
0x004138E7
0x0040206C
0x0040B277
0x0040B178
0x00407AB3
0x73FC62C4 in BaseThreadInitThunk
0x77440FD9 in RtlSubscribeWnfStateChangeNotification
0x77440FA4 in RtlSubscribeWnfStateChangeNotification

It's bug normal behavoiur?