Morphology check has_no_narrow_start raises Exception because a neurite's root node has only one point

[ssssarah]

Reproduction:

from morphio import Morphology
from neurom import load_morphology
from neurom.check import morphology_checks

# morphology_id: https://bbp.epfl.ch/neurosciencegraph/data/neuronmorphologies/ec4d9eae-5e0a-4409-a45d-ec5ec6dc3223
# morphology_self: https://bbp.epfl.ch/nexus/v1/resources/bbp-external/seu/_/https:%2F%2Fbbp.epfl.ch%2Fneurosciencegraph%2Fdata%2Fneuronmorphologies%2Fec4d9eae-5e0a-4409-a45d-ec5ec6dc3223
swc_path = ".../18455_00141.swc"

morphology = load_morphology(Morphology(swc_path), process_subtrees=True)

for neurite in morphology.neurites:
    r = neurite.root_node.points
    print(len(r))

# OUTPUT

# 104
# 9
# 467
# 58
# 6
# 25
# 23
# 1
# 1
# 3
# 132

fail = morphology_checks.has_no_narrow_start(morphology, frac=0.9)

Should all neurites' root node have at least 2 points?

[mgeplf]

Sorry for the long delay, other things have had priority.

Should all neurites' root node have at least 2 points?

Yes, that is an invariant in MorphIO, it seems it's been broken.
I have a fix here: BlueBrain/MorphIO#516
You can get the artifcats here:
https://github.com/BlueBrain/MorphIO/actions/runs/12069198211

I would be interested to know if it modifies any other morphometrics.