Fix logging plugin's handling of self query events

Log entries should always go to the file corresponding
to the Query, rather than to the user that happened
to send the message.

Closes #430

logging/src/com/dmdirc/addons/logging/LoggingManager.java

@@ -116,8 +116,7 @@ public class LoggingManager implements ConfigChangeListener {
     /** The manager to add history windows to. */
     private final WindowManager windowManager;
     /** Map of open files. */
-    private final Map<String, OpenFile> openFiles = Collections.synchronizedMap(
-            new HashMap<>());
+    private final Map<String, OpenFile> openFiles = Collections.synchronizedMap(new HashMap<>());
     private final DMDircMBassador eventBus;
     private final Provider<String> directoryProvider;
     private final BackBufferFactory backBufferFactory;
@@ -249,14 +248,14 @@ public class LoggingManager implements ConfigChangeListener {
 
     @Handler
     public void handleQueryActions(final BaseQueryActionEvent event) {
-        final User user = event.getUser();
+        final User user = event.getQuery().getUser();
         final String filename = locator.getLogFile(user);
         appendLine(filename, "* %s %s", user.getNickname(), event.getMessage());
     }
 
     @Handler
     public void handleQueryMessages(final BaseQueryMessageEvent event) {
-        final User user = event.getUser();
+        final User user = event.getQuery().getUser();
         final String filename = locator.getLogFile(user);
         appendLine(filename, "<%s> %s", user.getNickname(), event.getMessage());
     }