Michael Kuhn df77922d22 py-jupyterlab, py-jupyter-server: fix version range (#24864) ... Using the original concretizer, trying to concretize py-jupyterlab fails with ``` ==> Error: Invalid Version range: 6.1.0:6.1 ``` because py-tornado does not have a 6.1.0 version but only a 6.1 one.		2021-07-13 21:05:14 +00:00
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spack	py-jupyterlab, py-jupyter-server: fix version range (#24864)	2021-07-13 21:05:14 +00:00