Fixed /json/cfg unable to set busses (fixes #2589)

wled00/wled.cpp

@@ -28,7 +28,7 @@ void WLED::reset()
     yield();        // enough time to send response to client
   }
   applyBri();
-  DEBUG_PRINTLN(F("MODULE RESET"));
+  DEBUG_PRINTLN(F("WLED RESET"));
   ESP.restart();
 }
 
@@ -152,7 +152,7 @@ void WLED::loop()
 
   yield();
 
-  if (doReboot)
+  if (doReboot && !doInitBusses) // if busses have to be inited & saved, wait until next iteration
     reset();
   if (doCloseFile) {
     closeFile();