tree edd83ff56e6a6acc5f49d1d5719a09fb3ebd3ee3
parent 98f56d1bd543eca52eff2c76e7c5364a939c91fd
author Damien Neil <dneil@google.com> 1587502562 -0700
committer Damien Neil <dneil@google.com> 1587504184 +0000

internal/impl: fix off-by-one error in message initialization

This particular off-by-one can never happen in practice. We will crash
if a field has a number one greater than the maximum field number in the
dense array, but if field number N is in the array we will always put
N+1 in it as well.

Fix the off-by-one anyway.

Change-Id: I8c1304f2fc0d7b91036bde3f7ddb7115c21781ca
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/229278
Reviewed-by: Joe Tsai <joetsai@google.com>