Missing monomer labels when depicting MON SGroups

[eloyfelix]

Describe the bug
mon labels are missing when depicting molfiles with monomer SGroups (M STY MON)

To Reproduce

from rdkit import Chem
molfile = """
  Marvin  06091012252D          

 13 11  0  0  0  0            999 V2000
   -3.5063    2.1509    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0
   -2.7918    2.5634    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -2.0773    2.1509    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -1.3628    2.5634    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0
   -0.6484    2.1509    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.0661    2.5634    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
    0.7806    2.1509    0.0000 N   0  0  0  0  0  0  0  0  0  0  0  0
   -2.9984   -0.4714    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -2.2839   -0.0589    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -1.5695   -0.4714    0.0000 C   0  0  0  0  0  0  0  0  0  0  0  0
   -0.8550   -0.0589    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0
   -2.9984    0.3536    0.0000 O   0  0  0  0  0  0  0  0  0  0  0  0
    0.6777   -0.1775    0.0000 Cl  0  0  0  0  0  0  0  0  0  0  0  0
  1  2  1  0  0  0  0
  2  3  1  0  0  0  0
  3  4  1  0  0  0  0
  4  5  1  0  0  0  0
  5  6  1  0  0  0  0
  6  7  1  0  0  0  0
  8  9  1  0  0  0  0
  9 10  1  0  0  0  0
 10 11  1  0  0  0  0
  9 12  1  0  0  0  0
 12  8  1  0  0  0  0
M  STY  2   1 MON   2 MON
M  SAL   1  7   1   2   3   4   5   6   7
M  SDI   1  4   -3.9263    1.7309   -3.9263    2.9834
M  SDI   1  4    1.2006    2.9834    1.2006    1.7309
M  SAL   2  5   8   9  10  11  12
M  SDI   2  4   -3.4184   -0.8914   -3.4184    0.7736
M  SDI   2  4   -0.4350    0.7736   -0.4350   -0.8914
M  END
"""
mol = Chem.MolFromMolBlock(molfile)
mol

Expected behavior
mon labels to show next to the brackets, like in the following example (depicted with CDK)

Configuration (please complete the following information):

RDKit version: 2022.09.01
OS: [e.g. Ubuntu 20.04] MacOS
Python version (if relevant): 3.10
Are you using conda? No
If you are not using conda: how did you install the RDKit? pip install rdkit