Should FM result set be in a weak set, so it can close when outside of scope?

[ccgus]

See this twitter thread for info:
https://twitter.com/ccgus/status/671395172375105536

Basically- if an FMResultSet goes out of scope, it'll stay in a set forever. Should it have a weak ref somewhere, so it can be dealloc'd and clean up on its own?

[akshaynhegde]

Looks like there is a pull request related to this.
#304