tree 48eee7f3670432849b57620ac51f81be5c1b2a3a
parent c476de37821dbe6fef282eb912ffcb42ae8a1225
author Gustavo Niemeyer <gustavo@niemeyer.net> 1610033505 +0000
committer Gustavo Niemeyer <gustavo@niemeyer.net> 1610033505 +0000

Improve the behavior of null decoding (#681).

A null value in v3 is considered a request to maintain the default
untouched. If the value being decoded into is a map and there's no
prior value for the field, a new key will be added with the zero
map value type as its value.