Crash on 'install' - input seq was empty

[haf]

Steps to reproduce:

1. Create a new F# project w/ sln file
2. Run 'convert-from-nuget', which crashes with

Paket failed with:
   The input sequence was empty.
Parameter name: source

[3]. Add this to paket.dependencies:

source https://nuget.org/api/v2
nuget Intelliplan.JsonNet

[4]. Try to install the new nugets:

mono tools/paket.exe install --verbose
Paket version 0.16.2.0
found: /Users/henrik.feldt/dev/haf/albacore/spec/testdata/PaketProject/paket.dependencies
Parsing /Users/henrik.feldt/dev/haf/albacore/spec/testdata/PaketProject/paket.dependencies
Paket failed with:
   The input sequence was empty.
Parameter name: source
StackTrace:
    at Microsoft.FSharp.Collections.SeqModule.Reduce[FSharpSet`1] (Microsoft.FSharp.Core.FSharpFunc`2 reduction, IEnumerable`1 source) [0x00000] in <filename unknown>:0
  at Paket.InstallProcess.applyBindingRedirects[ResolvedPackage] (System.String root, IEnumerable`1 extractedPackages) [0x00000] in <filename unknown>:0
  at Paket.InstallProcess.Install (Microsoft.FSharp.Collections.FSharpList`1 sources, Boolean force, Boolean hard, Paket.LockFile lockFile) [0x00000] in <filename unknown>:0
  at Paket.UpdateProcess.Update (System.String dependenciesFileName, Boolean forceResolution, Boolean force, Boolean hard) [0x00000] in <filename unknown>:0
  at Paket.Dependencies.Install (Boolean force, Boolean hard) [0x00000] in <filename unknown>:0
  at Paket.Program+clo@110-1.Invoke (Microsoft.FSharp.Core.Unit unitVar) [0x00000] in <filename unknown>:0
  at <StartupCode$paket>.$Paket.Program.main@ () [0x00000] in <filename unknown>:0

[forki]

Seems it was already fixed in 0.17-alpha, but I also released 0.16.3 with the fix

[haf]

Thank you