[pull] master from TextureGroup:master#11
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pull[bot] merged 1 commit intoCodeWeaver13:masterfrom May 22, 2025
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## Summary For collection views, we do not currently check for batch fetching on scroll. This appears to be a bug, as `scrollViewDidScroll:` does call `_checkForBatchFetching`, and [the commit that added it states it's trying to check on each scroll](df497b8). Unfortunately, `_checkForBatchFetching` checks for `isTracking` and `isDragging` first and returns if either are `YES`. Since we're in a scroll, they are `YES`. So the call is effectively a no-op. This bug has been around for 9 years and I'm unsure of the performance implications of turning the batch fetching check on for each scroll tick. Therefore, put the fix behind an experiment feature flag _and_ only call it on the first scroll tick for the scroll session, instead of every scroll tick. Finally, I moved the check after the delegate call, in case the delegate has logic in it to turn on or off the batch fetching. ## Test plan Ran the app and manually tested batching getting called or not. Also ran `build.sh tests`.
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