Inconsistencies whilst trying to add multiple files to modal

[asnaith]

Description
There's an inconsistent behaviour whilst trying to add additional files for upload via this modal:

Steps to Reproduce

1. Login to files
2. Click the upload button and choose a file
3. Click the "Add more files" button and attempt to add an additional file to the modal

Observed behavior

• On chrome: After the selection of the first file, each attempt to add more requires the user to select a file twice.

• On safari: After the selection of the first file it's not possible to add any more to the modal.

Expected behavior
The user should be able to attach additional files as necessary without having to make 2 attempts.

Videos

Chrome behaviour (observe that it requires the additional file to be selected twice as the file picker is shown again after the selection):

Adding.Multiple.Files.Chome.mov

Safari behaviour (observe it is not possible to add more than one file to the modal):

Adding.multiple.files.Safari.mov

Desktop:

• OS: macOS
• Browser: Chrome / Safari
• Version : 93.0.4577.63 / 14.1.2 (16611.3.10.1.6)

Notes

• Works as expected if adding multiple files at once (ctrl + click selection)
• Works as expected for drag and drop
• Works as expected in firefox

[Tbaut]

Thanks, I can reproduce on Brave, not on FF.