Greg Becker 3b4d6ddc03 stacks: fix reference handling in env.write() (#12096) ... * stacks: Fix env.write to properly write references * stacks: regression test for 12095		2019-08-06 12:53:41 -07:00
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spack	stacks: fix reference handling in env.write() (#12096)	2019-08-06 12:53:41 -07:00