feat(multicursor): gQ restores primary-cursor position #42071

Problem:
Unlike "gv", "gQ" does not restore the primary-cursor position. This is
inconvenient for workflows where you temporarily clear the cursors,
navigate somewhere, then want to return to the multicursor session.

Solution:
Store the primary-cursor position at extmark-id 1 of the
`'nvim.multicursor.last'` namespace.

Note: users that *don't* want to restore the primary-cursor position can
delete extmark-id 1 from the `'nvim.multicursor.last'` namespace just
before `gQ`. (Intentionally undocumented because this interface is not
final, and should not block Nvim 0.13 release.)

    vim.keymap.set('n', 'gQ', function()
      local ns = vim.api.nvim_create_namespace('nvim.multicursor.last')
      pcall(vim.api.nvim_buf_del_extmark, 0, ns, 1)
      return 'gQ'
    end, { expr = true })

0 files changed, 0 insertions, 0 deletions