refactor(git/log): use bufhidden=delete for log buffers

lua/git/log_view.lua

@@ -13,9 +13,8 @@ local cr = vim.api.nvim_replace_termcodes("<CR>", true, false, true)
 local function attach_dispatch(buf)
     vim.keymap.set("n", "<CR>", function()
         local r = repo.resolve(buf)
-        -- Anchor past the leading graph chars (matches the leading sha
-        -- column, not any hex word that happens to appear later in the
-        -- subject).
+        -- Anchor past the leading graph chars (matches the leading sha column,
+        -- not any hex word that happens to appear later in the subject).
         local sha = r
             and vim.api
                 .nvim_get_current_line()
@@ -99,7 +98,7 @@ function M.read_uri(buf)
     repo.bind(buf, r)
 
     vim.bo[buf].swapfile = false
-    vim.bo[buf].bufhidden = "hide"
+    vim.bo[buf].bufhidden = "delete"
     vim.bo[buf].buftype = "nofile"
     vim.bo[buf].modifiable = false
     if vim.bo[buf].filetype ~= "gitlog" then