fix: gpencil diff

bl_types/bl_gpencil.py

@@ -59,7 +59,7 @@ class BlGpencil(BlDatablock):
 
     def diff(self):
         return (self.bl_diff() or
-                len(diff(self.dump(pointer=self.pointer), self.buffer)) > 1)
+                len(diff(self.dump(pointer=self.pointer), self.buffer)) > 0)
 
     def dump(self, pointer=None):
         assert(pointer)

operators.py

@@ -142,7 +142,7 @@ class SessionStartOperator(bpy.types.Operator):
             try:
                 client.commit(node)
             except Exception as e:
-                print(e)
+                print("error on first commit {}".format(e))
 
         # Push all added values
         client.push()