pbjs: error when Enum contains negative number

[halex2005]

protobuf.js version: 6.4.0 (current master, 751a90f)

I have two files:

1. ResolutionRequestInfo.proto

package SomeNamespace;

message ResolutionRequestInfo {
	optional ResolutionRequestType RequestType = 1 [default = UnknownResolutionRequestType];
}

enum ResolutionRequestType {
	UnknownResolutionRequestType = -1;
	Value1 = 1;
	Value2 = 2;
	Value3 = 3;
}

2. and ResolutionRequestAttachment.proto

import "ResolutionRequestInfo.proto";

package SomeNamespace;

message ResolutionRequestAttachment {
    required ResolutionRequestType Type = 1;
}

when I call

./bin/pbjs -o ResolutionRequestAttachment.js -t static ResolutionRequestAttachment.proto

I got error:

/home/hal/git/protobuf.js/cli/pbjs.js:165
            throw err;
            ^

Error: unresolvable field type: ResolutionRequestType
    at Error (native)
    at Field.resolve (/home/hal/git/protobuf.js/src/field.js:242:19)
    at /home/hal/git/protobuf.js/cli/targets/static.js:236:15
    at Array.forEach (native)
    at buildType (/home/hal/git/protobuf.js/cli/targets/static.js:235:22)
    at buildNamespace (/home/hal/git/protobuf.js/cli/targets/static.js:120:9)
    at /home/hal/git/protobuf.js/cli/targets/static.js:137:13
    at Array.forEach (native)
    at buildNamespace (/home/hal/git/protobuf.js/cli/targets/static.js:133:20)
    at /home/hal/git/protobuf.js/cli/targets/static.js:137:13

When I set UnknownResolutionRequestType to positive value, pbjs generates js-file successfully

In v6.3.0 there was no such errors.

[halex2005]

Thanks!