[Bug] Strange behavior when deleting buffer

https://user-images.githubusercontent.com/61395246/191591174-fe2e0f4b-2326-4f9e-b0ce-bea6ca905161.mp4

```lua
vim.api.nvim_create_autocmd("BufEnter", {
pattern = "*.pdf",
-- command = [[silent! execute "!nozathura '%' --fork" | :bd %]],
callback = function()
local path = vim.api.nvim_buf_get_name(0)
vim.fn.jobstart({ "zathura", path }, { detach = true })
vim.api.nvim_buf_delete(0, {})
end,

})
```

I use this autocommand to open pdfs from neovim. If the terminal is open while this autocommand runs it takes the whole screen and it makes it impossible to regain control back (i need to trick it to switch buffer then exit the terminal and launch it again..)