hi, I'm using this library to connect to MongoDb in my project.
I found strange thing when I insert some object into MongoDb.
following is my test code and result.

bson bs;
bson_init(&bs);
bson_append_start_object(&bs, "ObjName");
bson_append_start_array(&bs, "ArrName");
bson_append_start_object(&bs, "1");
bson_append_string(&bs, "str1", "val1");
bson_append_finish_object(&bs);
bson_append_start_object(&bs, "2");
bson_append_string(&bs, "str2", "val2");
bson_append_finish_object(&bs);
bson_append_start_object(&bs, "3");
bson_append_string(&bs, "str3", "val3");
bson_append_finish_object(&bs);
bson_append_finish_array(&bs);
bson_append_finish_object(&bs);
bson_finish(&bs);
bson_bool_t res = mongo_insert(
conn,
"MyTestDb.Test1",
&bs
);

after success to insert, when I check that data in the mongo shell,
they returns like following.

show dbs;
MyTestDb 0.078125GB
local (empty)

use MyTestDb
switched to db MyTestDb
show collections;
Test1
system.indexes

db.Test1.findOne();
{
"_id" : ObjectId("4fbee85a1a374e84411c7eb4"),
"ObjName" : {
"ArrName" : [
undefined,
{
"str1" : "val1"
},
{
"str2" : "val2"
},
{
"str3" : "val3"
}
]
}
}
there is 'undefined' field what I didn't insert.
if this is already known issue, please let me know.
I'll glad to receive any links, reply about this issue.

thanks!

-surym