Fix #456

lua/cmp/config.lua

@@ -74,10 +74,6 @@ end
 ---@param name string
 ---@return cmp.SourceConfig
 config.get_source_config = function(name)
-  local bufnr = vim.api.nvim_get_current_buf()
-  local global = config.global
-  local buffer = config.buffers[bufnr] or { revision = 1 }
-  return config.cache:ensure({ 'get_source_config', bufnr, global.revision or 0, buffer.revision or 0, name }, function()
   local c = config.get()
   for _, s in ipairs(c.sources) do
     if s.name == name then
@@ -88,7 +84,6 @@ config.get_source_config = function(name)
     end
   end
   return nil
-  end)
 end
 
 ---Normalize mapping key