Todd Gamblin ea7648ff84 bugfix: identical specs with different DAG hashes don't shadow each other ... - logic used in `spack find` was hiding duplicate installations if their hashes were different - short hash doesn't work in this scenario, since specs are structurally identical - ConstraintAction always works on a DB query, so use the DAG hash to ensure uniqueness		2018-11-09 00:31:24 -08:00
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spack	bugfix: identical specs with different DAG hashes don't shadow each other	2018-11-09 00:31:24 -08:00