DOC-3355: Upload progress UI was not hidden if a file failed to upload#4100

kemister85 merged 2 commits intofeature/8.5.0/DOC-3355tinymce/tinymce-docs:feature/8.5.0/DOC-3355from

feature/8.5.0/DOC-3355_TINY-14181tinymce/tinymce-docs:feature/8.5.0/DOC-3355_TINY-14181Copy head branch name to clipboard