saveQueue / cancelAllDownloadshould remove unfinished Downloads
When using saveQueue/cancelAllDownloads (pyweb/webui), the current item gets cancelled and reinserted at first position.
But, if your config is set to not overwrite existing files (or overwrite just tags), there will be unfinished files, that will not be corrected.
One way may be checking file size / size from api, but i'm not sure how to correlate these (tagging will surely change the file size?). Alternatively: just delete unfinished downloads.