Merge pull request #5 from greboid/master

Author: csmith

refs.go

@@ -95,6 +95,9 @@ func Fetch(url string, options ...Option) (map[string]string, error) {
 			parts := strings.SplitN(string(line), " ", 2)
 			hash := parts[0]
 			ref := strings.TrimSpace(strings.SplitN(parts[1], "\000", 2)[0])
+			if strings.HasSuffix(ref, "^{}") {
+				continue
+			}
 			if !o.tagsOnly || strings.HasPrefix(ref, tagPrefix) {
 				refs[ref] = hash
 			}

tags_test.go

@@ -51,6 +51,11 @@ func Test_latestTag(t *testing.T) {
 			"refs/tags/v1.0.0": commit1,
 			"refs/tags/1.0.0":  commit2,
 		}, "", "1.0.0", commit2, false},
+		{"Dereferenced tags should be filtered", map[string]string{
+			"refs/tags/v1.0.0":    commit1,
+			"refs/tags/v1.0.0^{}": commit2,
+			"refs/tags/v1.0.1":    commit3,
+		}, "", "v1.0.1", commit3, false},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {