
From the issue, it looks like an NPE in this closure, we're not sure what else it could be besides the weak ptr - which could be null. Fixes https://github.com/flutter/flutter/issues/149895
From the issue, it looks like an NPE in this closure, we're not sure what else it could be besides the weak ptr - which could be null. Fixes https://github.com/flutter/flutter/issues/149895