clear out some SessionHandleRef's on close.

diff --git a/libs/canvas/wave_view.cc b/libs/canvas/wave_view.cc
index a0b9e48fda3066acfff08ea874713d5a1fa4abb2..609738326c78b152c9d432e651d150634667cec0 100644 (file)
--- a/libs/canvas/wave_view.cc
+++ b/libs/canvas/wave_view.cc
@@ -141,6 +141,9 @@ WaveView::WaveView (Item* parent, boost::shared_ptr<ARDOUR::AudioRegion> region)
 WaveView::~WaveView ()
 {
        invalidate_image_cache ();
+       if (images ) {
+               images->clear_cache ();
+       }
 }
 
 string