Revert "BUG/REG: RollingGroupby MultiIndex levels dropped (#38737)" #39191
+23
−55
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This reverts commit a37f1a4.
reverts PR #38737
I think we ended up deciding to revert on master and backport to keep master and 1.2.x in sync and not release this change in 1.2.1 to allow for further discussion.
once this revert PR merged:
if not these changes, the mutliindex with a single level may still need resolution (and backport) to close #38523
cc @mroeschke @jorisvandenbossche
add 1.2.1 milestone for this revert for backport.