
Fixes: #154595 Prior to commit bbc8346e6bb543b0a87f52114fed7d766446bee1, this flag was set by `insert()` from `addUndefined()`. Set it explicitly now.
Fixes: #154595 Prior to commit bbc8346e6bb543b0a87f52114fed7d766446bee1, this flag was set by `insert()` from `addUndefined()`. Set it explicitly now.