[ptx] hugin rc1 segfault

[manouchk]

Hi,

I 'm still running hugin rc1 (didn't have time to compile new snapshot that 
didn't compile out of the box). When adding a control near the border of an 
image, hugin did segfault. It happens rarely this is the third time.


$ hugin output.pto
Panorama obj created

(hugin:27469): GLib-GObject-WARNING **: invalid cast from `GtkScrolledWindow' 
to `GtkWindow'

(hugin:27469): Gtk-CRITICAL **: gtk_window_set_transient_for: assertion 
`parent == NULL || GTK_IS_WINDOW (parent)' failed
ERROR: 12:52:06.521775 (../../src/include/vigra_ext/Correlation.h:429) 
PointFineTune(): subpixel estimation not done, maxima to close to border
ERROR: 12:58:00.536211 (../../src/include/vigra_ext/Correlation.h:429) 
PointFineTune(): subpixel estimation not done, maxima to close to border
Segmentation fault