Kostia Balytskyi writes:
> # HG changeset patch
> # User Kostia Balytskyi
> # Date 1485532411 28800
> # Fri Jan 27 07:53:31 2017 -0800
> # Node ID 494e92ec0cef1e98a5ac0a233d1fc7dcb6ac3fc7
> # Parent ad31e88e4c85ba95642231f73c0915dd6997962f
> display:
# HG changeset patch
# User Kostia Balytskyi
# Date 1485532411 28800
# Fri Jan 27 07:53:31 2017 -0800
# Node ID 494e92ec0cef1e98a5ac0a233d1fc7dcb6ac3fc7
# Parent ad31e88e4c85ba95642231f73c0915dd6997962f
display: compute whether the node is obsolete only if needed
For