re-frame-10x/docs/README.md

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# Usage
## App DB path expansions
re-frame-trace preserves path expansions by using the through the JSONML
that is rendered, rather than the actual data path. This has the advantage
of being feasible, but the disadvantage that if the HTML layout changes,
then that can trigger expansion changes. This means that if the map keys
change ordering (say when switching from an ArrayMap to a HashMap), then
different items will be expanded/contracted.