commits: f93b467db5e35ca94fefa518c32ee9bf93232475

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sha	message	author_date	committer_date	raw_author	raw_committer	repo	author	committer
f93b467db5e35ca94fefa518c32ee9bf93232475	Fix to_index(): return multiindex level as single index (#7105) * to_index(): return multiindex level as single index * try fix broken tests Add Variable._to_index method used internally and returns multi-index for level variables. * fix groupby test Add DataArray._to_index * one small comment * update release notes * fix docs * refactor / move safe_cast_to_index	2022-10-12T14:12:47Z	2022-10-12T14:12:47Z	7c39fdcf60cc53af273aaf57e5babfd7c2fcd3db	cd792325681cbad9f663f2879d8b69f1edbb678f	13221727	4160723	19864447