fix prototype resource loading

[pmeier]

The current logic checks for any files with the same stem regardless of the ending

vision/torchvision/prototype/datasets/utils/_resource.py

Line 93 in e88a554

path_candidates = {file for file in path.parent.glob(path.name.replace("".join(path.suffixes), "") + "*")}

It should be checking for the same stem and a different suffix which starts with a .. Without this patch, a file like foo_bar.zip is a valid path candidate for foo.zip.

This was independently discovered in

• Implementation of Stanford Cars prototype dataset #5442 (cc @abhi-glitchhg ): cars_test.tgz and cars_test_annos_withlabels.mat
• add HMDB51 and UCF101 datasets as well as prototype for new style video decoding #5422: UCF101.rar and UCF101TrainTestSplits-RecognitionTask.zip

[facebook-github-bot]

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[NicolasHug]

Stamping to unlock.

If the logic starts to become complex and with various edge-cases that we're not seeing yet (like the one that just occured), it might be worth considering a different approach for this eventually