Pick a Segment (two active nodes, one inactive midpoint)
Click the midpoint to "activate" it and split the segment in two
Midpoint Active, new inactive midpoints added on each side
Route shows 3 nodes, 2 segments
Select the "Top" new segment
Expected : Only top part selected (so I can make it pushback or unidirectional
Observed: The original segment has not been split and is still a single element
Save / Edit again
Select the "Top" new segment
Expected : Only top part selected (so I can make it pushback or unidirectional
Observed: The original segment has now been split and turned into 2 independent elements