[Bug]: Incorrect length of underline when display lsp diagnostics indicator

[heddxh]

Is there an existing issue for this?

• I have searched the existing issues

What happened?

When showing diagnostics indicator after lsp have been prepared, the underline is split, length is too small.

What did you expect to happen?

The underline fill all length of the tab/buffer.

Config

{
  'akinsho/bufferline.nvim',
  event = 'VeryLazy',
  keys = {
    { '<leader>bp', '<Cmd>BufferLineTogglePin<CR>', desc = 'Toggle Pin' },
    { '<leader>bP', '<Cmd>BufferLineGroupClose ungrouped<CR>', desc = 'Delete Non-Pinned Buffers' },
    { '<leader>bo', '<Cmd>BufferLineCloseOthers<CR>', desc = 'Delete Other Buffers' },
    { '<leader>br', '<Cmd>BufferLineCloseRight<CR>', desc = 'Delete Buffers to the Right' },
    { '<leader>bl', '<Cmd>BufferLineCloseLeft<CR>', desc = 'Delete Buffers to the Left' },
    {
      '<leader>bq',
      function()
        MiniBufremove.delete()
      end,
      desc = '[Q]uit current [B]uffer',
    },
    { '<S-h>', '<cmd>BufferLineCyclePrev<cr>', desc = 'Prev Buffer' },
    { '<S-l>', '<cmd>BufferLineCycleNext<cr>', desc = 'Next Buffer' },
    { '[b', '<cmd>BufferLineCyclePrev<cr>', desc = 'Prev Buffer' },
    { ']b', '<cmd>BufferLineCycleNext<cr>', desc = 'Next Buffer' },
    { '[B', '<cmd>BufferLineMovePrev<cr>', desc = 'Move buffer prev' },
    { ']B', '<cmd>BufferLineMoveNext<cr>', desc = 'Move buffer next' },
  },
  config = function(_, opts)
    require('bufferline').setup(vim.tbl_deep_extend('force', opts, { ---@type bufferline.Options
      options = {
        indicator = { style = 'underline' },
        always_show_bufferline = false,
        diagnostics = 'nvim_lsp',
        diagnostics_indicator = function(_, _, diagnostics_dict, _)
          local s = ' '
          for e, n in pairs(diagnostics_dict) do
            local sym = e == 'error' and ' ' or (e == 'warning' and ' ' or ' ')
            s = s .. sym
          end
          return s
        end,
        offsets = {
          {
            filetype = 'neo-tree',
            text = 'Neo-Tee',
            highlight = 'Document',
            separator = '┃', -- TODO: choose a thinner symbol
          },
        },
        color_icons = true,
        show_buffer_close_icons = false,
        tab_size = 15,
        separator_style = 'slant',
        custom_filter = function(buf, bufnums)
          if vim.bo[buf].filetype == 'qf' then
            return false
          end
          -- Ignore unnamed buffers
          if vim.api.nvim_buf_get_name(buf) == '' then
            return false
          end
          return true
        end,
      },
    }))
    -- Fix bufferline when restoring a session
    vim.api.nvim_create_autocmd({ 'BufAdd', 'BufDelete' }, {
      callback = function()
        vim.schedule(function()
          pcall(nvim_bufferline)
        end)
      end,
      desc = 'Fix bufferline when restoring a session',
    })
  end,
}

Additional Information

No response

commit

0b2fd86