Bugfix #3818: nmesh.insertKey() was not letting Ipo space know to

recalculate, causing a segfault when the curve was selected in the Ipo
window.  lattice.insertKey() has similar code.  Added calls to
allspace(REMAKEIPO,0) to correct this.

source/blender/python/api2_2x/Lattice.c

@@ -46,6 +46,7 @@
 #include "DNA_scene_types.h"
 #include "BIF_editkey.h"
 #include "BIF_editdeform.h"
+#include "BIF_space.h"
 #include "blendef.h"
 #include "gen_utils.h"
 
@@ -759,6 +760,7 @@ static PyObject *Lattice_insertKey( BPy_Lattice * self, PyObject * args )
 
 	//insert a keybock for the lattice (1=relative)
 	insert_lattkey( lt , 1);
+	allspace(REMAKEIPO, 0);
 
 	if( frame > 0 )
 		G.scene->r.cfra = (short)oldfra;