[Bug] allowMultiple not working in firefox

[IndyVC]

Is there an existing issue for this?

• I have searched the existing issues

Have you updated React FilePond, FilePond, and all plugins?

• I have updated FilePond and its plugins

Describe the bug

When trying to add a file to filepond, onfileadd is triggered, but it immediately disappears. When removing the property allowMultiple={true} it works. But I'd need to be able to upoad multiple files.

Reproduction

1. Open firefox
2. Set boolean allowMultiple=true
3. Drop a file from your file explorer
4. File immediately disappears (not added)

Environment

- Device:/ not device specific
- OS:macOS
- Browser:firefox
- React version:17.0.2