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"0BSD" license should be a valid SPDX license expression
Please create an issue over at https://github.com/shinnn/spdx-license-ids for this
It should be included in
email@example.com which is in npm v6.6.0 (commit).
It should also be in
firstname.lastname@example.org (commit) which is pretty old already. What version of npm are you using? And can you post the debug log?