TYPO3 Core

When a user uploads files to the filelist, by using the drag'n'drop fileuploader a confirmation message "Shall existing files be overwritten?" appears.
This message is misleading in two ways:

1. It appears always, even when the uploaded files won't overwrite any existing files
2. The user is presented the options "Cancel" and "Ok". When pressing "Cancel" the files are uploaded anyway (but no files will be overwritten). IMHO "Cancel" suggests to cancel the whole action

1. Only ask for confirmation, if at least one of the uploaded files will overwrite an existing file, and display the files which will be overwritten
2. If the user selects "Cancel", cancel the whole action, and don't upload any files.
3. If no files will be overwritten, just upload them without disturbing the user.