Leo's git-diff command provides a node-oriented diff. I use this command 
constantly.


In an earlier post, I mentioned a telltale signal that a node's gnx has 
changed: git-diff reports a pair of nodes, one added, the other deleted. 
The gnx *definitely *has changed if both nodes have the same contents. The 
gnx *may *have changed if the headlines are the same, but the bodies differ.


*Aha!* git-diff can detect this pattern! Doh! I should have thought of this 
before :-)


This Aha will improve git-diff slightly. The command will replace pairs of 
added/deleted nodes with a single node describing the changed gnxs.


*Summary*


The Aha is *essential *for git-node-history. This command must track nodes' 
history reliably, even when their gnxs change. The Aha shows how.


Edward

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