Go back to content-driven slice keys in feeds #2190
Merged
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Outdated suggestions cannot be applied.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.
Keys were changed to be auto-numbered in an attempt to ensure we never hit duplicate react keys. That approach unfortunately hurt performance and led to state corruption as react would reuse state across components that have the same key.
The change was done out of an abundance of caution. I'm still not 100% sure we never duplicate react keys but I wasnt able to trigger it, whereas the state corruption is happening a lot, so this is the move.