Dependabot firing on non-existant file

[apple1417]

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On https://github.com/bl-sdk/bl-sdk.github.io , we have been getting dependabot alerts about scripts/requirements.txt for a long time.

However, this path no longer exists.
https://github.com/bl-sdk/bl-sdk.github.io/blob/master/scripts/requirements.txt

It did historically exist - https://github.com/bl-sdk/bl-sdk.github.io/blob/last_v2_docs/scripts/requirements.txt, but was deleted in bl-sdk/bl-sdk.github.io@5a65103. Given this commit doesn't show any changes, something weird's definitively going on, but you can browse files on it and its two parents to see the file no longer exists. Iirc it wasn't true merge, I think I did some sort of fiddling with git plumbing to add another parent commit without editing any of the files in the repo.

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[lucie-germain]

This is happening in my repo as well. I had an alert raised 8H ago, on a file that was moved 3 month ago : Here is the alert : https://github.com/overleaf/internal/security/dependabot/2270