Huge amount of collissions between KDE programs

[peterhoeg]

Issue description

With the latest nixos-unstable I'm seeing a huge amount of very odd collisions:

collision between `/nix/store/s7ay5gckvqklba0616mvz4kxkylqnv6w-breeze-icons-5.29.0/share/icons/breeze-dark/mimetypes/32/text-x-rust.svg' and `/nix/store/qz9a9j5iiqdncap5k9i2qb1xna82p1nh-kronometer-2.1.0/share/icons/breeze-dark/mimetypes/32/text-x-rust.svg'
collision between `/nix/store/s7ay5gckvqklba0616mvz4kxkylqnv6w-breeze-icons-5.29.0/share/icons/breeze-dark/mimetypes/32/text-x-scala.svg' and `/nix/store/qz9a9j5iiqdncap5k9i2qb1xna82p1nh-kronometer-2.1.0/share/icons/breeze-dark/mimetypes/32/text-x-scala.svg'
collision between `/nix/store/s7ay5gckvqklba0616mvz4kxkylqnv6w-breeze-icons-5.29.0/share/icons/breeze-dark/mimetypes/32/text-x-script.svg' and `/nix/store/qz9a9j5iiqdncap5k9i2qb1xna82p1nh-kronometer-2.1.0/share/icons/breeze-dark/mimetypes/32/text-x-script.svg'
collision between `/nix/store/s7ay5gckvqklba0616mvz4kxkylqnv6w-breeze-icons-5.29.0/share/icons/breeze-dark/mimetypes/32/text-x-sql.svg' and `/nix/store/qz9a9j5iiqdncap5k9i2qb1xna82p1nh-kronometer-2.1.0/share/icons/breeze-dark/mimetypes/32/text-x-sql.svg'

... cut ...

collision between `/nix/store/78wxacl4zv7qwhp5x7afp0zqvp0z5mii-network-manager-1.4.2/share/man/man1/nmtui-hostname.1.gz' and `/nix/store/9qx8sqd609nxpd1h037zzg147jblx50q-gwenview-16.12.0/share/man/man1/nmtui-hostname.1.gz'
collision between `/nix/store/78wxacl4zv7qwhp5x7afp0zqvp0z5mii-network-manager-1.4.2/share/man/man1/nmtui.1.gz' and `/nix/store/9qx8sqd609nxpd1h037zzg147jblx50q-gwenview-16.12.0/share/man/man1/nmtui.1.gz'
collision between `/nix/store/78wxacl4zv7qwhp5x7afp0zqvp0z5mii-network-manager-1.4.2/share/man/man5/NetworkManager.conf.5.gz' and `/nix/store/9qx8sqd609nxpd1h037zzg147jblx50q-gwenview-16.12.0/share/man/man5/NetworkManager.conf.5.gz'
collision between `/nix/store/78wxacl4zv7qwhp5x7afp0zqvp0z5mii-network-manager-1.4.2/share/man/man5/nm-settings-keyfile.5.gz' and `/nix/store/9qx8sqd609nxpd1h037zzg147jblx50q-gwenview-16.12.0/share/man/man5/nm-settings-keyfile.5.gz'
c

Why would gwenview end up with network-manager man pages?

cc: @ttuegel

Steps to reproduce

1. Latest nixos-unstable
2. Throw some kde5 packages into systemPackages.

Technical details

• NixOS: 17.03.git.b19cf24c95M (Gorilla)
• Nix: nix-env (Nix) 1.11.5
• nixpkgs: 17.03pre97767.5ba7f33

[ttuegel]

@abbradar Is this a consequence of your work on the KDE wrapper?

[abbradar]

Ouch, it seems so. I'll investigate (not sure how NetworkManager got there...). -- Nikolay.