Unable to process schema when title is ambiguous

Describe the bug

Unable to process schema /components/schemas/ActualApprovement:

Could not find reference in parsed models or enums

Failure to process schema has resulted in the removal of:
/components/schemas/ActualApprovement

Reference(ref='#/components/schemas/backend__server__src__models__types__approvement__ApprovementStatus')

OpenAPI Spec File
A link to an OpenAPI document which produces this issue. Ideally, write a minimal reproduction only containing the problematic pieces.

{
  "components": {
    "schemas": {
      "backend__gateways__types__ApprovementStatus": {
        "type": "string",
        "enum": [
          "in_progress",
          "suspended",
          "rejected",
          "closed"
        ],
        "title": "ApprovementStatus"
      },
      "backend__server__src__models__types__approvement__ApprovementStatus": {
        "type": "string",
        "enum": [
          "pending",
          "approved",
          "rejected",
          "cancelled"
        ],
        "title": "ApprovementStatus"
      },
"ActualApprovement": {
        "properties": {
          "status": {
            "$ref": "#/components/schemas/backend__server__src__models__types__approvement__ApprovementStatus"
          }
        },
        "type": "object",
        "required": [
          "status",
        ],
        "title": "ActualApprovement"
      },
}}}

Desktop (please complete the following information):

• OS: Ubuntu 22.04
• Python Version: 3.9
• openapi-python-client version 0.27.1

Additional context
Add any other context about the problem here.

Beginne damit, den Fehler mit dem OpenAPI-Dokument aus dem Issue zu reproduzieren, wobei du dich auf das Parsen von Schemas und die Referenzauflösung für die beiden Schemas konzentrierst, die den Titel "ApprovementStatus" teilen. Die Aufgabe ist abgeschlossen, wenn das referenzierte Enum korrekt aufgelöst wird und das ActualApprovement-Schema nicht entfernt wird.