tree 555f9ac516d1f8358c009628c9524967427f1342
parent 8ac9dd257be811ef144fa51862ba6c2866d2e64d
author Herbie Ong <herbie@google.com> 1553899340 -0700
committer Herbie Ong <herbie@google.com> 1554180603 +0000

encoding/jsonpb: fix unmarshaling of NullValue field

A JSON "null" field should set the NullValue enum field because
NullValue has the custom encoding format of "null".

Change-Id: I2bfa0900de64d7e2874f7c6db04b1cbc0b61b904
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/170107
Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>