bug(picker.explorer): template flickers in input title

[drowning-cat]

Did you check docs and existing issues?

• I have read all the snacks.nvim docs
• I have updated the plugin to the latest version before submitting this issue
• I have searched the existing issues of snacks.nvim
• I have searched the existing issues of plugins related to this issue

Neovim version (nvim -v)

NVIM v0.11.0-dev-1776+g4c2d14a370

Operating system/version

Linux, Arch Btw

Describe the bug

The template {title} {live} {flags} briefly appears in the input title.

title-template-blink.mp4

title-template-blink-2.mp4

Steps To Reproduce

1. :lua Snacks.explorer()

Expected Behavior

Placeholder pattern should not be visible.

Repro

vim.env.LAZY_STDPATH = ".repro"
load(vim.fn.system("curl -s https://raw.githubusercontent.com/folke/lazy.nvim/main/bootstrap.lua"))()

require("lazy.minit").repro({
  spec = {
    { "folke/snacks.nvim", opts = {} },
    -- add any other plugins here
  },
})

[xian-wen]

Yeah. I also want to post this. Not exists in other pickers.