[Nix-dev] bug on nix-env version parsing?

[Lluís Batlle]

Hello,

I have this full reproducible:
$ nix-env -qc '*'  | grep thund
thunderbird-3.0                    = 3.0
$ nix-env -u --leq --dry-run '*'
upgrading `thunderbird-3.0' to `thunderbird-2.0.0.22'

?