Class level @Tag overwrites method level @Operation.tags

[jamesatmarble]

When an operation has tags applied at both the class and method level, only the class level tags are applied.

To Reproduce
Steps to reproduce the behavior:

• What version of spring-boot you are using?

  • 2.6.2

• What modules and versions of springdoc-openapi are you using?

  • springdoc-openapi-ui 1.6.3

• Provide with a sample code (HelloController) or Test that reproduces the problem

  @RestController
  @RequestMapping("/api/v1/hello")
  @Tag(name = "SomeTag")
    public class HelloController {
  
    @GetMapping(produces = "application/json")
    @Operation(
        description = "Get a hello message",
        tags = {"SomeOtherTag"},
        responses = {
            @ApiResponse(responseCode = "200", description = "A hello message"),
        }
    )
    public ResponseEntity<String> getHelloMessage() {
        return ResponseEntity.ok("Hello World");
    }
  }
  

Expected behavior
The following json is produced

  {
    "tags" : ["SomeTag", "SomeOtherTag"],
    "paths" : {
      "/api/v1/hello": {
        "get": {
          "tags" : ["SomeTag", "SomeOtherTag"]
        }
      }
    }
  }

What is actually produced:

  {
    "tags" : ["SomeTag"],
    "paths" : {
      "/api/v1/hello": {
        "get": {
          "tags" : ["SomeTag"]
        }
      }
    }
  }

Additional context
When the class level @Tag is removed the tag on the @Operation appears.
The desired behaviour was observed in version 1.2.22