File is always reuploaded if starting from context menu

[KosMos-pv]

I added VirusTotal to context menu and when I try to upload already known file to VirusTotal via context menu it uploads from scratch. But if I drop file into main window there is a message about scan results found on VirusTotal.
Please add checking for existing scans when sending file via context menu.

It also would be nice if window is automatically closed after upload. There should be an option for this.

[SamuelTulach]

Closing this issue since it was associated with the old version of uploader. The entire program had a large recode. Please reopen this issue if it persists in the new version as well.