Fixes #7238 - Annotated tag commit ID incorrect (#7321)

* Fixes #7238 - Annotated tag commit ID incorrect

* Fixes #7238 - Annotated tag commit ID incorrect

modules/git/repo_tag.go

@@ -141,9 +141,10 @@ func (repo *Repository) GetTagNameBySHA(sha string) (string, error) {
 			fields := strings.Fields(tagRef)
 			if strings.HasPrefix(fields[0], sha) && strings.HasPrefix(fields[1], TagPrefix) {
 				name := fields[1][len(TagPrefix):]
-				// annotated tags show up twice, their name for commit ID is suffixed with ^{}
-				name = strings.TrimSuffix(name, "^{}")
-				return name, nil
+				// annotated tags show up twice, we should only return if is not the ^{} ref
+				if !strings.HasSuffix(name, "^{}") {
+					return name, nil
+				}
 			}
 		}
 	}

routers/api/v1/convert/convert.go

@@ -281,7 +281,7 @@ func ToCommitUser(sig *git.Signature) *api.CommitUser {
 // ToCommitMeta convert a git.Tag to an api.CommitMeta
 func ToCommitMeta(repo *models.Repository, tag *git.Tag) *api.CommitMeta {
 	return &api.CommitMeta{
-		SHA: tag.ID.String(),
+		SHA: tag.Object.String(),
 		// TODO: Add the /commits API endpoint and use it here (https://developer.github.com/v3/repos/commits/#get-a-single-commit)
 		URL: util.URLJoin(repo.APIURL(), "git/commits", tag.ID.String()),
 	}