From aee45d9cce7859b6ec63ed31f4fca5730744761f Mon Sep 17 00:00:00 2001
From: Paul Licameli <paul.licameli@audacityteam.org>
Date: Mon, 9 Jan 2017 15:10:06 -0500
Subject: [PATCH] Fix bogus error dialog when append-recording with no waves...

But with at least one track of other type, such as Time
---
 src/toolbars/ControlToolBar.cpp | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/toolbars/ControlToolBar.cpp b/src/toolbars/ControlToolBar.cpp
index 6db819e0a..8bf3e7bec 100644
--- a/src/toolbars/ControlToolBar.cpp
+++ b/src/toolbars/ControlToolBar.cpp
@@ -886,7 +886,16 @@ void ControlToolBar::OnRecord(wxCommandEvent &evt)
 #ifdef EXPERIMENTAL_DA
       shifted = !shifted;
 #endif
-      if(it.First() == NULL)
+      bool hasWave = false;
+      for (auto t = it.First(); t; t = it.Next()) {
+         if (t->GetKind() == Track::Wave) {
+            hasWave = true;
+            break;
+         }
+      }
+      if(!hasWave)
+         // Treat append-record like record, when there was no given wave track
+         // to append onto.
          shifted = false;
 
       double t0 = p->GetSel0();