Issue with XDATA in conversion DWG->JSON->DWG

[michal-josef-spacek]

File: BLANK_English.dwg.gz
Entity: XDATA

Next object: 39 Handleoff: 0x1 [UMC] Offset: 393 [MC] @22271
==========================================
Object number: 39/27, Size: 16 [MS], Type: 79 [BS], Address: 22273
Add object XRECORD [39] Decode object XRECORD
bitsize: 82 [RL] @3.2
 Hdlsize: 0x2E, hdl_dat: @10.2 - @16.0 (16)
handle: 0.1.2E [H 5]
EED[0] size: 0 (end)
num_eed: 0
num_reactors: 1 [BL 0]
ownerhandle: (12.1.2) abs:44 [H 330]
reactors[0]: (4.1.2C) abs:44 [H* 330] => DICTIONARY
xdicobjhandle: (3.0.0) abs:0 [H 360]
--common_size: 60
xdata_size: 0 [BL 0]
cloning: 1 [BS 280]
num_objid_handles: 0 [BL]
 padding: +6
 object_map{2E} = 39
 padding: 1/1 (6 bits)
crc: DAFB [RSx]
 check_CRC 22271-22289 = 18: DAFB == DAFB

diff in JSONs before and after conversion:

1327c1327
<       "xdata_size": 0,
---
>       "xdata_size": 2,

First JSON:

    {
      "object": "XRECORD",
      "index": 39,
      "type": 79,
      "handle": [0,1,46],
      "size": 16,
      "bitsize": 82,
      "ownerhandle": [12,1,2,44],
      "reactors": [
        [4,1,44,44]
      ],
      "xdata_size": 0,
      "xdata": [
  
      ],
      "cloning": 1
    },