Fix test

Author: lunny

routers/web/repo/pull_review_test.go

@@ -41,7 +41,9 @@ func TestRenderConversation(t *testing.T) {
 
 	var preparedComment *issues_model.Comment
 	run("prepare", func(t *testing.T, ctx *context.Context, resp *httptest.ResponseRecorder) {
-		comment, err := pull.CreateCodeComment(ctx, pr.Issue.Poster, ctx.Repo.GitRepo, pr.Issue, 1, "content", "", false, 0, pr.HeadBranch, nil)
+		headCommitID, err := ctx.Repo.GitRepo.GetBranchCommitID(pr.HeadBranch)
+		assert.NoError(t, err)
+		comment, err := pull.CreateCodeComment(ctx, pr.Issue.Poster, ctx.Repo.GitRepo, pr.Issue, 1, "content", "", false, 0, headCommitID, nil)
 		require.NoError(t, err)
 
 		comment.Invalidated = true