encoding/protojson/well_known_types.go | 12 9 + 3 - 0 !
1 file changed, 9 insertions(+), 3 deletions(-)

 encoding/protojson: fix parsing of google.protobuf.timestamp

The Timestamp message uses a subset of RFC 3339.
RFC 3339, section 5.6 specifies that the subsecond field can have
any non-zero number of digits.
On the other hand, the protobuf documentation specifies that Timestamp
uses RFC 3339 with a few restrictions. In other words,
protobuf does NOT use RFC 3339, but rather a subset of it.

An upstream change https://go.dev/cl/425037 modifies the time package
to be internally consistent about handling of extra subsecond digits
allowing it to be more in line with RFC 3339.

Make a corresponding change here to ensure we remain compliant
with protobuf's restricted use of RFC 3339.