id,node_id,number,title,user,state,locked,assignee,milestone,comments,created_at,updated_at,closed_at,author_association,active_lock_reason,draft,pull_request,body,reactions,performed_via_github_app,state_reason,repo,type
2196272235,PR_kwDOAMm_X85qKODl,8856,Migrate indexing and broadcasting logic to `xarray.namedarray` (Part 1),13301940,open,0,,,0,2024-03-19T23:51:46Z,2024-05-03T17:08:11Z,,MEMBER,,1,pydata/xarray/pulls/8856,"<!-- Feel free to remove check-list items aren't relevant to your change -->

This pull request is the first part of migrating the indexing and broadcasting logic from `xarray.core.variable` to `xarray.namedarray`. I intend to open follow-up pull requests to address additional changes related to this refactoring, as outlined in the [proposal for decoupling lazy indexing functionality from NamedArray](https://github.com/pydata/xarray/blob/main/design_notes/named_array_design_doc.md#plan-for-decoupling-lazy-indexing-functionality-from-namedarray).

- [ ] Closes #xxxx
- [ ] Tests added
- [ ] User visible changes (including notable bug fixes) are documented in `whats-new.rst`
- [ ] New functions/methods are listed in `api.rst`
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2231711080,PR_kwDOAMm_X85sCbN-,8921,"Revert `.oindex` and `.vindex` additions in `_ElementwiseFunctionArray`, `NativeEndiannessArray`, and `BoolTypeArray` classes",13301940,open,0,,,9,2024-04-08T17:11:08Z,2024-04-30T06:49:46Z,,MEMBER,,0,pydata/xarray/pulls/8921,"<!-- Feel free to remove check-list items aren't relevant to your change -->

As noted in https://github.com/pydata/xarray/issues/8909, the use of `.oindex` and `.vindex` properties in coding/* appears to have broken some backends (e.g. scipy). This PR reverts those changes. We plan to bundle these changes into a separate backends feature branch (see [this comment](https://github.com/pydata/xarray/pull/8885#issuecomment-2036001828), which will be merged once we are confident about its impact on downstream dependencies.

- [ ] Closes #8909
- [ ] Tests added
- [ ] User visible changes (including notable bug fixes) are documented in `whats-new.rst`
- [ ] New functions/methods are listed in `api.rst`
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1916603412,PR_kwDOAMm_X85bZS7E,8244,Migrate VariableArithmetic to NamedArrayArithmetic,13301940,open,0,,,6,2023-09-28T02:29:15Z,2023-10-11T17:03:02Z,,MEMBER,,1,pydata/xarray/pulls/8244,"<!-- Feel free to remove check-list items aren't relevant to your change -->

- [ ] towards #8238
- [ ] Tests added
- [ ] User visible changes (including notable bug fixes) are documented in `whats-new.rst`
- [ ] New functions/methods are listed in `api.rst`
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