bug: smooth scroll in picker preview may scroll to wrong place

[Kaiser-Yang]

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Neovim version (nvim -v)

v0.11.0

Operating system/version

WSL-2 ubuntu 24.04

Describe the bug

When using grep picker to find content of a file and switching items of list from file a's item to file b's item, the animation of preview may stop at the wrong place.

Steps To Reproduce

1. Make a test directory and two files a and b
2. Put those contents to file a and file b

# a
word
... many empty lines here
word
# b
... many empty lines here
word
... many empty lines here

3. Search word by grep picker, there will be three items as shown below:

4. When select item up and down the animation will start, when we switch from the last item to the first item fast enough, which means the animation of a:63 and a:1 not finished when switching from a:1 to b:18, the animation of switch between a:1 and a:63 will continue on the b:18's preview, which will cause the preview of b:18 at the wrong place:

Expected Behavior

When switching between different files, disable the unfinished animation.

[github-actions[bot]]

This issue is stale because it has been open 30 days with no activity. Remove stale label or comment or this will be closed in 7 days.

[github-actions[bot]]

This issue was closed because it has been stalled for 7 days with no activity.

[folke]

Sorry it took so long to fix, but thank you so much for the perfect way to reproduce this. This has been super helpful in finding the issue. ty!