This is not coherent, unless develops_from is reflexive, or band form neutrophils have existed for all of time...
This is preventing the uberon release, as we can't make a basic ontology (basic ontologies have no cycles in the graph).
Protege seems to hang when trying to open cl-edit -- I wonder if this is the reason?
Removed mature neutrophil develops_from: "band form neutrophil". Fixes …
new releases. Fixes #453 and #455