improving #63 for more consitent guide mode behavior

__init__.py

@@ -1009,7 +1009,7 @@ def release_place_cut(self,context,settings, event):
                                     feature_factor = settings.feature_factor)
 
                     path.insert_new_cut(context, self.original_form, self.bme, self.selected, search = settings.search_factor)
-                    path.seg_lock = True  #for now
+                    path.seg_lock = False  #not locked yet...not until a 2nd cut is added in loop mode
                     path.segments = 1
                     path.ring_segments = len(self.selected.verts_simple)
                     path.connect_cuts_to_make_mesh(self.original_form)
@@ -1934,7 +1934,7 @@ def invoke(self, context, event):
 
 
                     path.existing_head = existing_loop
-                    path.seg_lock = True
+                    path.seg_lock = False
                     path.ring_lock = True
                     path.ring_segments = len(existing_loop.verts_simple)
                     path.connect_cuts_to_make_mesh(target)

contour_classes.py

@@ -1379,6 +1379,8 @@ def snap_merge_into_other(self, merge_series, merge_ring, context, ob, bme):
 
         #expensive recalculation of whole path
         #TODO: make this process smarter
+        merge_series.world_path = [cut.verts_simple[0] for cut in merge_series.cuts]
+        merge_series.segments = len(merge_series.cuts) - 1
         merge_series.backbone_from_cuts(context,ob,bme)
         merge_series.connect_cuts_to_make_mesh(ob)
         merge_series.update_visibility(context,ob)