Problem: oil sets buftype='acwrite' inside view.initialize(), which runs
in an async finish() callback after adapter.normalize_url(). BufEnter
fires before finish() completes, so user autocmds that check buftype on
oil buffers see an empty string instead of 'acwrite'.
Solution: set buftype='acwrite' early in load_oil_buffer() alongside the
existing early filetype='oil' assignment, before the async gap. The
redundant set in view.initialize() is harmless (idempotent).
Closes: stevearc/oil.nvim#710
Barrett Ruth
c932ca1313
