Got `MethodNotFound` error if `yaml.schemas` matches filename `fleet.yaml`

Describe the bug

Got MethodNotFound error if yaml.schemas matches filename fleet.yaml, no error if changed to other filename.

Expected Behavior

No diagonostics error.

Current Behavior

Ddiagonostics error:

Problems loading reference 'schemaservice:/Users/roc/dotfiles/kubeschemas/fleet-agones.dev-v1.json': Unable to load schema from 'schemaservice:/Users/roc/dotfiles/kubeschemas/fleet-agones.dev-v1.json': MethodNotFound. [768]

Steps to Reproduce

Neovim yamlls config matches filename fleet.yaml:

No error output if changed to another filename which not equal fleet.yaml.

Environment

• Windows
• Mac
• Linux
• other (please specify)

yaml-language-server is managed by Mason which uses latest release 1.15.0:

About My Neovim Usage

I write scripts to parse kubernetes YAML file, set json schema to yamlls according to apiVersion and kind, append current file path to related json schema.

The most important is to customize yamlls on_attach function, share my scripts:

local M = {}

local function remove_prefix(str, prefix)
  if str:sub(1, #prefix) == prefix then
    return str:sub(#prefix + 1)
  else
    return str
  end
end

local path_separator = package.config:sub(1, 1)

local kubeschemas_dir = os.getenv("HOME") .. path_separator .. ".config" .. path_separator .. "kubeschemas"

-- local kubeschemas = kubeschemas_dir .. path_separator .. "kubernetes.json"
local regKind = vim.regex([[\v^kind: \S+$]])
local regApiVersion = vim.regex([[\v^apiVersion: \S+$]])
local regHelm = vim.regex([[\v\{\{.+\}\}]])
local detach = function(client, bufnr)
  vim.diagnostic.enable(false, { bufnr = bufnr })
  vim.defer_fn(function()
    vim.diagnostic.reset(nil, bufnr)
    vim.lsp.buf_detach_client(bufnr, client.id)
  end, 500)
end

local get_new_settings = function(client, bufnr)
  --  Ingore kustomization.yaml, it has schema in schemastore.
  local buf_path = vim.api.nvim_buf_get_name(bufnr)
  if buf_path:match("kustomization.ya?ml$") then
    return client.config.settings
  end

  -- remove yamlls from not yaml files
  -- https://github.com/towolf/vim-helm/issues/15
  if vim.bo[bufnr].buftype ~= "" or vim.bo[bufnr].filetype == "helm" then
    -- detach(client, bufnr)
    return nil
  end

  local lines = vim.api.nvim_buf_get_lines(bufnr, 0, -1, false)
  local kind = nil
  local apiVersion = nil
  for _, line in ipairs(lines) do
    if regHelm:match_str(line) then -- ignore helm template
      detach(client, bufnr)
      return nil
    end
    if not kind then
      if regKind:match_str(line) then
        kind = remove_prefix(line, "kind: ")
        if apiVersion then
          break
        end
      end
    end
    if not apiVersion then
      if regApiVersion:match_str(line) then
        apiVersion = remove_prefix(line, "apiVersion: ")
        if kind then
          break
        end
      end
    end
  end

  if kind then
    local filename = kind
    if apiVersion then
      filename = filename .. "-" .. string.gsub(apiVersion, "/", "-")
    end
    filename = string.lower(filename)
    local jsonschema = kubeschemas_dir .. path_separator .. filename .. ".json"
    if vim.uv.fs_stat(jsonschema) then
      local schema = client.config.settings.yaml.schemas[jsonschema] or {}
      local bufuri = vim.uri_from_bufnr(bufnr)
      if not vim.tbl_contains(schema, bufuri) then
        vim.list_extend(schema, { bufuri })
        client.config.settings.yaml.schemas[jsonschema] = schema
        return client.config.settings
      end
    end
  end
end

M.on_attach = function(client, bufnr)
  if client.name ~= "yamlls" then
    return
  end

  local new_settings = get_new_settings(client, bufnr)
  if new_settings then
    client.server_capabilities.documentRangeFormattingProvider = true
    client.workspace_did_change_configuration(client.config.settings)
  end
end

return M

Reproduce the issue with yaml-language-server 1.15.0 using the reported Neovim on_attach configuration and a schema mapping that matches fleet.yaml. Start by tracing yaml.schemas handling and the schemaservice request that reports MethodNotFound; done means the matching filename produces no diagnostics error while other schema mappings continue to work.