Ovewrite warning message is not displayed when creating files from a URL

[dmedv]

If you uncheck "Auto file name from URL" and enter the name of an existing file, the existing file will be silently overwritten with the URL contents.

[dimm0]

The files are downloaded to scidrive as a background task. There's no way to ask user permission to overwrite at the time of pulling one... Even if a file doesn't exist at the time of creating this request, it can appear later when the task is executed