RDKit crashes on CIP label calculation

[ricrogz]

This seems similar or related to issue #4996:

(I'm using RDKit Release 2022_03_1b1).

mb = """
  Mrv2202 03282213442D          

  0  0  0     0  0            999 V3000
M  V30 BEGIN CTAB
M  V30 COUNTS 12 12 0 0 1
M  V30 BEGIN ATOM
M  V30 1 C 3.3342 -1.54 0 0 CFG=1
M  V30 2 C 4.6679 -0.77 0 0 CFG=1
M  V30 3 C 4.6679 0.77 0 0
M  V30 4 C 3.3342 1.54 0 0
M  V30 5 C 2.0005 0.77 0 0
M  V30 6 C 2.0005 -0.77 0 0 CFG=2
M  V30 7 C 3.3342 -3.08 0 0
M  V30 8 C 0.6668 -1.54 0 0
M  V30 9 C -0.6668 -0.77 0 0
M  V30 10 * 3.3342 3.08 0 0
M  V30 11 C -2.0005 -1.54 0 0
M  V30 12 C 6.0016 -1.54 0 0
M  V30 END ATOM
M  V30 BEGIN BOND
M  V30 1 1 1 2
M  V30 2 1 2 3
M  V30 3 1 3 4
M  V30 4 1 4 5
M  V30 5 1 5 6
M  V30 6 1 6 1
M  V30 7 1 1 7 CFG=3
M  V30 8 1 6 8 CFG=1
M  V30 9 1 8 9
M  V30 10 1 4 10
M  V30 11 1 9 11
M  V30 12 1 2 12 CFG=1
M  V30 END BOND
M  V30 END CTAB
M  END"""
m = Chem.MolFromMolBlock(mb)
Chem.AssignCIPLabels(m)
                                                                                                                   
---------------------------------------------------------------------------
RuntimeError                              Traceback (most recent call last)
<ipython-input-3-ad5ba0ccc1a6> in <module>
----> 1 Chem.AssignCIPLabels(m)

RuntimeError: Substituents should be topologically equivalent!