In few cases, with the introduction of the graph-base
calo-particles, some electron was either not releasing
directly hits in the calorimeters or, if it had, they could
have been rejected due to selection and threshold effects.
While the first case was already covered in the code (i.e.
the no hit one), the second case was not. This bug caused
the electron to be included w/o its sub-components that
would have been later on added as separate PFCandidates.
This PR fix the second use case.