BulkUpload FormsManager references stale thumbnails after partial success

[akhrarovsaid]

Describe the Bug

The thumbnails that are generated in the bulk upload drawer do not get removed for successful saves. Say, for example, if you are uploading two images and each image requires an alt field to be populated, and only one image passes validation, the remaining image will have the stale thumbnail of the first entry visible on it.

Observe this issue here:
https://github.com/user-attachments/assets/b8878844-dd0a-4f24-986c-25c6d0e31233

Link to the code that reproduces this issue

https://github.com/akhrarovsaid/payload/tree/repro/bulkupload-stale-thumbnail

Reproduction Steps

• Grab repro
• Navigate to posts
• Click create new to trigger bulk upload drawer to open
• Add 2 images (it's important that these files are images so that we generate thumbnails for them)
• Add an alt to only the first image and submit
• Observe remaining image with stale thumbnail of previous image

Which area(s) are affected? (Select all that apply)

area: ui

Environment Info

Payload: 3.17.1+
Node: 20+