Buffer changes on new ldap.Change

[Nevermore696]

I'm trying to update thumbnailPhoto on user account, but in ldap.Change this buffer changes to another:

Here is the code:

console.log(modify);
                var change_tmp = new ldap.Change({
                    operation: 'replace',
                    modification: modify
                });
                change_arr.push(change_tmp);
                console.log(change_tmp);
        }

And here is the console lines:

{ thumbnailPhoto: <Buffer 89 50 4e 47 0d 0a 1a 0a 00 00 00 0d 49 48 44 52 00 00 00 cc 00 00 00 cc 08 03 00 00 00 08 fc bc c0 00 00 01 29 50 4c 54 45 ff ff ff f6 86 34 a7 52 14 ... > }
Change {
  _modification: 
   Attribute {
     type: 'thumbnailPhoto',
     _vals: [ <Buffer ef bf bd 50 4e 47 0d 0a 1a 0a 00 00 00 0d 49 48 44 52 00 00 00 ef bf bd 00 00 00 ef bf bd 08 03 00 00 00 08 ef bf bd ef bf bd ef bf bd 00 00 01 29 50 ... > ],
     vals: [Getter/Setter],
     buffers: [Getter],
     json: [Getter] },
  operation: [Getter/Setter],
  modification: [Getter/Setter],
  json: [Getter],
  _operation: 2 }

Why my buffer have changed during the ldap.Change function?
I understand that 89 = ef bf bd and this is the "REPLACEMENT CHARACTER", but cc also was changed to ef df bd...
How can I put pure untouched buffer to ldap? Because my buffer is correct - I have compared it with powershell results.

[Nevermore696]

Ok, found it. Thats because you change all values to string.

keys.forEach(function (k) {
var _attr = new Attribute({type: k});
if (Array.isArray(attr[k])) {
attr[k].forEach(function (v) {
_attr.addValue(v.toString());
});
} else {
_attr.addValue(attr[k].toString());
}
self._modification = _attr;
});

Can we change this behaviour in case of binary object?

[jsumners]

Potentially resolved by #383. If not, feel free to re-open.

[jsumners]

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