Fix vanilla `fetch` with non-GitHub remotes`

Fixes #1227

commands/fetch.go

@@ -44,8 +44,7 @@ func tranformFetchArgs(args *Args) error {
 	localRepo, err := github.LocalRepo()
 	utils.Check(err)
 
-	currentProject, err := localRepo.CurrentProject()
-	utils.Check(err)
+	currentProject, currentProjectErr := localRepo.CurrentProject()
 
 	projects := make(map[*github.Project]bool)
 	ownerRegexp := regexp.MustCompile(OwnerRe)
@@ -53,6 +52,7 @@ func tranformFetchArgs(args *Args) error {
 		if ownerRegexp.MatchString(name) && !isCloneable(name) {
 			_, err := localRepo.RemoteByName(name)
 			if err != nil {
+				utils.Check(currentProjectErr)
 				project := github.NewProject(name, currentProject.Name, "")
 				gh := github.NewClient(project.Host)
 				repo, err := gh.Repository(project)

features/fetch.feature

@@ -9,6 +9,12 @@ Feature: hub fetch
     Then the git command should be unchanged
     And there should be no output
 
+  Scenario: Fetch existing remote from non-GitHub source
+    Given the "origin" remote has url "ssh://dev@codeserver.dev.xxx.drush.in/~/repository.git"
+    When I successfully run `hub fetch origin`
+    Then the git command should be unchanged
+    And there should be no output
+
   Scenario: Fetch from local bundle
     Given the GitHub API server:
       """