diff --git a/.hgtags b/.hgtags
--- a/.hgtags
+++ b/.hgtags
@@ -3,3 +3,4 @@ c0082ca197fb5a8762017dcf21762091fd9a99cb
 854077b2d7cc749acc124541ed5a6163dd07d088 growing cell
 df8602459ab009cd967403f00f7aa13cecf368b8 divide over principal axis
 9b6820f9a10b631401b77cd849b2933b7a1c87c7 divide over explicit axis
+d811502e67f8799be24c751f305e92d223a4f3f5 divide over arbitrary axis