TYPO3 Core

Since the last DragDrop-Uploader patch, some bugs occurs:

1. Select "Skip all files", all single selectors will be disabled. Choose "Rename all files", nothing happens. Only way: Select "Please choose", which enable all single selector again.
2. Frans find another issue: Choose "Skip all files" will run the progressbar again, but I can't reproduce it atm.
3. If I upload a bunch of files, some already there, some not, no dialog appears, and in the top right corner an orange loading animation is shown and never disappear.
4. With a lot of files, the modal is bigger then the screen. it is possible to scroll the page (modal), I would prefer a modal within in the viewport which scrolls the content of the modal.
5. Upload in some cases produce JS error in console: DragUploader.js:282 Uncaught TypeError: Cannot read property 'original' of undefined

Patchset: https://review.typo3.org/#/c/40270