Using current, not legacy date types name causes JSON Schema generation errors

[aj-stein-nist]

Describe the bug

When using the current version of metaschema-xslt as of commit 0010340, when I use the current kabob-case data types [in documentation]() and not [the legacy data types (no longer documented), the JSON Schemas, some $refs double the name after the path, rendering the JSON Schemas invalid.

Who is the bug affecting?

Developer using metaschema-xslt for JSON Schema generation of models in a Metaschema module.

What is affected by this bug?

JSON Schema generation

When does this occur?

Consistently

How do we replicate the issue?

{What are the steps to reproduce the behavior?

1. Use ./bin/metaschema-xslt schema-gen 'choice-example_metaschema.xml' '.' 'choice-example' to generate schema
2. Open JSON Schema and observe refs like { "$ref" : "#/definitions/PositiveIntegerDatatype PositiveIntegerDatatype" }, int the outputted schema

Metaschema module:

<?xml version="1.0" encoding="UTF-8"?>
<?xml-model href="https://raw.githubusercontent.com/usnistgov/metaschema/develop/schema/xml/metaschema.xsd" type="application/xml" schematypens="http://www.w3.org/2001/XMLSchema"?>
<METASCHEMA xmlns="http://csrc.nist.gov/ns/oscal/metaschema/1.0">
    <schema-name>Model for Testing usnistgov/metaschema-xslt#105</schema-name>
    <schema-version>0.1.0</schema-version>
    <short-name>choice-bug-issue-105</short-name>
    <namespace>https://github.com/usnistgov/metaschema-xslt/issues/105</namespace>
    <json-base-uri>https://github.com/usnistgov/metaschema-xslt/issues/105</json-base-uri>
    <define-assembly name="root">
        <formal-name>Root Assembly for Choice</formal-name>
        <description>This root assembly should only an instance to have a field of a or b, but not both.</description>
        <root-name>root</root-name>
        <model>
            <choice>
                <define-field name="a" as-type="positive-integer" min-occurs="1" max-occurs="1"/>
                <define-field name="b" as-type="positive-integer" min-occurs="1" max-occurs="1"/>
            </choice>
        </model>
    </define-assembly>
</METASCHEMA>

Outputted JSON Schema:

 { "$schema" : "http://json-schema.org/draft-07/schema#",
  "$id" : "https://github.com/usnistgov/metaschema-xslt/issues/105/0.1.0/choice-bug-issue-105-schema.json",
  "$comment" : "Model for Testing usnistgov/metaschema-xslt#105: JSON Schema",
  "type" : "object",
  "definitions" : 
  { "json-schema-directive" : 
   { "title" : "Schema Directive",
    "description" : "A JSON Schema directive to bind a specific schema to its document instance.",
    "$id" : "#/definitions/json-schema-directive",
    "$ref" : "#/definitions/URIReferenceDatatype" },
   "choice-bug-issue-105-choice-bug-issue-105:root" : 
   { "title" : "Root Assembly for Choice",
    "description" : "This root assembly should only an instance to have a field of a or b, but not both.",
    "$id" : "#/definitions/choice-bug-issue-105-choice-bug-issue-105:root",
    "type" : "object",
    "properties" : 
    { "a" : 
     { "$ref" : "#/definitions/PositiveIntegerDatatype PositiveIntegerDatatype" },
     "b" : 
     { "$ref" : "#/definitions/PositiveIntegerDatatype PositiveIntegerDatatype" } },
    "additionalProperties" : false },
   "IntegerDatatype" : 
   { "description" : "A whole number value.",
    "type" : "integer" },
   "PositiveIntegerDatatype" : 
   { "description" : "An integer value that is greater than 0.",
    "allOf" : 
    [ 
     { "$ref" : "#/definitions/IntegerDatatype" },

     { "type" : "number",
      "minimum" : 1 } ] },
   "URIReferenceDatatype" : 
   { "description" : "A URI Reference, either a URI or a relative-reference, formatted according to section 4.1 of RFC3986.",
    "type" : "string",
    "format" : "uri-reference" } },
  "properties" : 
  { "$schema" : 
   { "$ref" : "#/definitions/json-schema-directive" },
   "root" : 
   { "$ref" : "#/definitions/choice-bug-issue-105-choice-bug-issue-105:root" } },
  "required" : 
  [ "root" ],
  "additionalProperties" : false }

If applicable, add screenshots to help explain your problem.}

Expected behavior (i.e. solution)

Whether using datatype=positive-integer, I would want the correct schema rendered like so below.

 { "$schema" : "http://json-schema.org/draft-07/schema#",
  "$id" : "https://github.com/usnistgov/metaschema-xslt/issues/105/0.1.0/choice-bug-issue-105-schema.json",
  "$comment" : "Model for Testing usnistgov/metaschema-xslt#105: JSON Schema",
  "type" : "object",
  "definitions" : 
  { "json-schema-directive" : 
   { "title" : "Schema Directive",
    "description" : "A JSON Schema directive to bind a specific schema to its document instance.",
    "$id" : "#/definitions/json-schema-directive",
    "$ref" : "#/definitions/URIReferenceDatatype" },
   "choice-bug-issue-105-choice-bug-issue-105:root" : 
   { "title" : "Root Assembly for Choice",
    "description" : "This root assembly should only an instance to have a field of a or b, but not both.",
    "$id" : "#/definitions/choice-bug-issue-105-choice-bug-issue-105:root",
    "type" : "object",
    "properties" : 
    { "a" : 
     { "$ref" : "#/definitions/PositiveIntegerDatatype" },
     "b" : 
     { "$ref" : "#/definitions/PositiveIntegerDatatype" } },
    "additionalProperties" : false },
   "IntegerDatatype" : 
   { "description" : "A whole number value.",
    "type" : "integer" },
   "PositiveIntegerDatatype" : 
   { "description" : "An integer value that is greater than 0.",
    "allOf" : 
    [ 
     { "$ref" : "#/definitions/IntegerDatatype" },

     { "type" : "number",
      "minimum" : 1 } ] },
   "URIReferenceDatatype" : 
   { "description" : "A URI Reference, either a URI or a relative-reference, formatted according to section 4.1 of RFC3986.",
    "type" : "string",
    "format" : "uri-reference" } },
  "properties" : 
  { "$schema" : 
   { "$ref" : "#/definitions/json-schema-directive" },
   "root" : 
   { "$ref" : "#/definitions/choice-bug-issue-105-choice-bug-issue-105:root" } },
  "required" : 
  [ "root" ],
  "additionalProperties" : false }

Other Comments

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