Incorrect JSON buffer release fix.

wled00/set.cpp

@@ -495,9 +495,9 @@ void handleSettingsSet(AsyncWebServerRequest *request, byte subPage)
       }
     }
     usermods.readFromConfig(um);  // force change of usermod parameters
-  }
 
-  releaseJSONBufferLock();
+    releaseJSONBufferLock();
+  }
   
   if (subPage != 2 && (subPage != 6 || !doReboot)) serializeConfig(); //do not save if factory reset or LED settings (which are saved after LED re-init)
   if (subPage == 4) alexaInit();