RAR to MOBI Conversion Probs

Good day!

if a rar archive contains the Thumbs.db file is not converted to mobi
if a file is deleted from Thumbs.db rar archive, if you add the archive to calibre it becomes cbr and can be converted to mobi

Can you add the option of ignoring Thumbs.db files in rar archives when a file is added to calibre?

Thanks