Cask forgets about versions older than current

[opie4624]

If a cask's current version is newer than the one(s) currently installed, cask doesn't know about them:

/opt/homebrew-cask/Caskroom $ ls -la torbrowser
total 0
drwxr-xr-x   4 akraut  staff   136 Sep  1 00:26 .
drwxr-xr-x  40 akraut  staff  1360 Aug 25 00:52 ..
drwxr-xr-x   8 akraut  staff   272 May  2 22:55 3.6
drwxr-xr-x   8 akraut  staff   272 Jun 21 01:45 3.6.2

/opt/homebrew-cask/Caskroom $ brew cask remove torbrowser
Error: torbrowser is not installed

/opt/homebrew-cask/Caskroom $ brew cask info torbrowser
torbrowser: 3.6.4
https://www.torproject.org/projects/torbrowser.html
Not installed
https://github.com/caskroom/homebrew-cask/blob/master/Casks/torbrowser.rb
==> Contents
  TorBrowser.app (link)

/opt/homebrew-cask/Caskroom $ 

[vitorgalvao]

We’re very aware of the issue, and are taking measures to fix that, like storing cask metadata.