diff --git a/bundle.c b/bundle.c
index 4497343..6c4695e 100644
--- a/bundle.c
+++ b/bundle.c
@@ -273,7 +273,7 @@
 			if (!get_sha1_hex(buf.buf + 1, sha1)) {
 				struct object *object = parse_object(sha1);
 				object->flags |= UNINTERESTING;
-				add_pending_object(&revs, object, buf.buf);
+				add_pending_object(&revs, object, xstrdup(buf.buf));
 			}
 		} else if (!get_sha1_hex(buf.buf, sha1)) {
 			struct object *object = parse_object(sha1);
diff --git a/t/t5510-fetch.sh b/t/t5510-fetch.sh
index d7eca5d..9d72b16 100755
--- a/t/t5510-fetch.sh
+++ b/t/t5510-fetch.sh
@@ -442,4 +442,19 @@
 	)
 '
 
+test_expect_success 'all boundary commits are excluded' '
+	test_commit base &&
+	test_commit oneside &&
+	git checkout HEAD^ &&
+	test_commit otherside &&
+	git checkout master &&
+	test_tick &&
+	git merge otherside &&
+	ad=$(git log --no-walk --format=%ad HEAD) &&
+	git bundle create twoside-boundary.bdl master --since="$ad" &&
+	convert_bundle_to_pack <twoside-boundary.bdl >twoside-boundary.pack &&
+	pack=$(git index-pack --fix-thin --stdin <twoside-boundary.pack) &&
+	test_bundle_object_count .git/objects/pack/pack-${pack##pack	}.pack 3
+'
+
 test_done