assignChiralTypesFrom3D() ignores wiggly bonds

[greglandrum]

Describe the bug
Here's the demo:

In [24]: m = Chem.MolFromMolBlock(
    ...:     """
    ...:      RDKit          3D
    ...: 
    ...:   0  0  0  0  0  0  0  0  0  0999 V3000
    ...: M  V30 BEGIN CTAB
    ...: M  V30 COUNTS 5 4 0 0 0
    ...: M  V30 BEGIN ATOM
    ...: M  V30 1 C 0.900794 -0.086835 0.009340 0
    ...: M  V30 2 C -0.552652 0.319534 0.077502 0
    ...: M  V30 3 F -0.861497 0.413307 1.437370 0
    ...: M  V30 4 Cl -0.784572 1.925710 -0.672698 0
    ...: M  V30 5 O -1.402227 -0.583223 -0.509512 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 2 4 CFG=2
    ...: M  V30 4 1 2 5
    ...: M  V30 END BOND
    ...: M  V30 END CTAB
    ...: M  END"""
    ...: )

In [26]: Chem.AssignAtomChiralTagsFromStructure(m)  # calls assignChiralTypesFrom3D()

In [27]: m.Debug()
Atoms:
	0 6 C chg: 0  deg: 1 exp: 1 imp: 3 hyb: 4 arom?: 0 chi: 0
	1 6 C chg: 0  deg: 4 exp: 4 imp: 0 hyb: 4 arom?: 0 chi: 1
	2 9 F chg: 0  deg: 1 exp: 1 imp: 0 hyb: 4 arom?: 0 chi: 0
	3 17 Cl chg: 0  deg: 1 exp: 1 imp: 0 hyb: 4 arom?: 0 chi: 0
	4 8 O chg: 0  deg: 1 exp: 1 imp: 1 hyb: 4 arom?: 0 chi: 0
Bonds:
	0 0->1 order: 1 conj?: 0 aromatic?: 0
	1 1->2 order: 1 conj?: 0 aromatic?: 0
	2 1->3 order: 1 conj?: 0 aromatic?: 0
	3 1->4 order: 1 conj?: 0 aromatic?: 0

the wiggly bond from atom 1 should prevent it from having stereochemistry assigned.

Configuration (please complete the following information):

• RDKit version: all
• OS: all