These two are <function that returns JsonWrap>.get(), where the JsonWrap is a temporary. We got lucky because the shared internal structure stored in the JsonWrap happens to have not been destroyed. This commit stores a local JsonWrap first, and then get a json reference out of it. This helps avoid the extra copy of the json while ensuring the shared structure does not get destroyed.

Type: fix

CCBUG: https://iron.lily-is.land/T15

Verify that the build logs does not have -Wdangling-reference warnings.