Inconsistency in OntologyManager interfaces

[Demirrr]

from owlapy.owl_ontology_manager import SyncOntologyManager, OntologyManager
o1 = SyncOntologyManager().create_ontology("file:/example_ontology.owl")
for owl_subclass_of_axiom in SyncOntologyManager().load_ontology("KGs/Family/father.owl").get_tbox_axioms():
    o1.add_axiom(owl_subclass_of_axiom)
o1.save(path="demo.owl")

o2=OntologyManager().load_ontology(path="demo.owl")
print(len(o1))

OntologyManager().load_ontology() should work as SyncOntologyManager().load_ontology

Traceback (most recent call last):
  File "/home/cdemir/Desktop/Softwares/owlapy/asd.py", line 24, in <module>
    o2=OntologyManager().load_ontology(path="demo.owl")
  File "/home/cdemir/Desktop/Softwares/owlapy/owlapy/owl_ontology_manager.py", line 94, in load_ontology
    path_iri = IRI.create(path)
  File "/home/cdemir/Desktop/Softwares/owlapy/owlapy/iri.py", line 62, in create
    assert "/" in iri, "Input must contain /"
AssertionError: Input must contain /