Here is an example constraint (changing only the reporting variable in one
form) in various forms as a single constraint in an RDF graph.

@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix shacl: ... .
@prefix ex: <http://example.org/> .
[ rdf:type shacl:Constraint ;
  shacl:severity shacl:fatal ;
  shacl:constraint 
  """PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> 
     PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> 
     PREFIX xsd: <http://www.w3.org/2001/XMLSchema#> 
     PREFIX shacl: ... 
     PREFIX ex: <http://example.org/> 
     SELECT ?person WHERE 
     { ?person rdf:type ex:Person .
       MINUS
       FILTER NOT EXISTS { ?person ex:offspring ?v . 
         FILTER NOT EXISTS { ?v rdf:type ex:Person . } } }"""
] .

@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix shacl: ... .
@prefix ex: <http://example.org/> .
[ rdf:type shacl:Constraint ;
  shacl:severity shacl:fatal ;
  shacl:report "SELECT ?this" ;
  shacl:classScope "http://example.org/Person"^^xsd:anyURI ;
  shacl:sparqlShape
    """FILTER NOT EXISTS { ?this ex:offspring ?v . 
         FILTER NOT EXISTS { ?v rdf:type ex:Person . } }""" 
] .

@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix shacl: ... .
@prefix ex: <http://example.org/> .
[ rdf:type shacl:Constraint ;
  shacl:severity shacl:fatal ;
  shacl:report "SELECT ?person" ;
  shacl:sparqlScope "?person rdf:type http://example.org/Person" ;
  shacl:sparqlShape
    """FILTER NOT EXISTS { ?person ex:offspring ?offspring . 
         FILTER NOT EXISTS { ?offspring rdf:type ex:Person . } }""" 
] .

@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix shacl: ... .
@prefix ex: <http://example.org/> .
[ rdf:type shacl:Constraint ;
  shacl:severity shacl:fatal ;
  shacl:report """SELECT ?this""" ;
  shacl:shapeScope
    [ shacl:property "http://www.w3.org/1999/02/22-rdf-syntax-ns#type" ;
      shacl:value "http://example.org/Person"^^xsd:anyURI ] ;
  shacl:shape 
    [ shacl:property "http://example.org/offspring" ;
      shacl:valueType "http://example.org/Person"^^xsd:anyURI ] 
] .


Here is a *partial approximation* of the issue example.

@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix shacl: ... .
@prefix ex: <http://example.org/> .
@prefix : <http://shacl.example.org/> .
:IssueConstraint
  rdf:type shacl:Constraint ;
  shacl:severity shacl:warning ;
  shacl:shapeScope [ shacl:property "http://example.org/state"^^xsd:anyURI ;
  		     shacl:values ( "http://example.org/assigned"^^xsd:anyURI 
		     		    "http://example.org/unassigned"^^xsd:anyURI
				    ) ] ;
  shacl:shape
  [ shacl:and
    ( [ shacl:property "http://example.org/reportedBy"^^xsd:anyURI ;
      	shacl:cardinality 1 ;
 	shacl:valueType "http://example.org/User"^^xsd:anyURI ]
      [ shacl:property "http://example.org/reportedOn"^^xsd:anyURI ;
      	shacl:cardinality 1 ;
 	shacl:valueDatatype "http://www.w3.org/2001/XMLSchema#dateTime"^^xsd:anyURI ] 
      # does not include optional bit yet
      [ shacl:property "http://example.org/reportedOn"^^xsd:anyURI ;
        shacl:minCardinality 0 ; shacl:maxCardinality "unbounded" ;
      	shacl:valueShape [ shacl:property "http://example.org/state"^^xsd:anyURI ;
 			   shacl:values ( "http://example.org/assigned"^^xsd:anyURI 
 			   		  "http://example.org/unassigned"^^xsd:anyURI
				        ) ] ] )
  ] .