Simplication in Tracker Find Panel

If attribute mode and you select a mime type, Remove then add the rows first
with the first items marked, then go through and re-mark the selected item.

src/kits/tracker/FindPanel.cpp

@@ -1132,6 +1132,7 @@ FindPanel::MessageReceived(BMessage* message)
 			if (fMode == kByAttributeItem) {
 				// the attributes for this type may be different
 				RemoveAttrViewItems(false);
+				AddAttrRow();
 			}
 
 			BMenuItem* item;
@@ -1143,9 +1144,6 @@ FindPanel::MessageReceived(BMessage* message)
 				SetCurrentMimeType(item);
 			}
 
-			if (fMode == kByAttributeItem)
-				AddAttrRow();
-
 			break;
 		}
 
@@ -2509,10 +2507,8 @@ FindPanel::AddAttributeControls(int32 gridRow)
 			B_TRANSLATE_NOCOLLECT(operatorLabels[i]), message));
 	}
 
-	// mark first items if not marked
-	if (menu->FindMarked() == NULL)
+	// mark first items initially
 	menu->ItemAt(0)->SetMarked(true);
-	if (submenu->FindMarked() == NULL)
 	submenu->ItemAt(0)->SetMarked(true);
 
 	// add SIZE attribute