[bug]The buffer displayed at vim startup is changed

[staticWagomU]

Describe the bug

The buffer displayed at vim startup is changed.

https://github.com/tani/vim-jetpack/assets/34824645/2a2f67d2-7d8c-4fcf-81d0-4c3bc2319f8b

minimal vimrc

syntax enable
filetype plugin indent on

set rtp+=~/tmp/vim-jetpack

set fileformats=unix,dos,mac
set hidden
set laststatus=2

packadd vim-jetpack
call jetpack#begin()
Jetpack 'tani/vim-jetpack', {'opt': 1} "bootstrap
call jetpack#end()

env

os: Windows 11 pro

> vim --version
VIM - Vi IMproved 9.0 (2022 Jun 28, compiled May  9 2023 22:54:14)
MS-Windows 64 ビット コンソール 版
適用済パッチ: 1-1536
Compiled by appveyor@APPVEYOR-VM
Huge 版 without GUI.  機能の一覧 有効(+)/無効(-)
+acl                +ex_extra           +multi_lang         -tag_any_white
+arabic             +extra_search       +mzscheme/dyn       -tcl
+autocmd            -farsi              -netbeans_intg      +termguicolors
+autochdir          +file_in_path       +num64              +terminal
+autoservername     +find_in_path       +packages           -termresponse
-balloon_eval       +float              +path_extra         +textobjects
+balloon_eval_term  +folding            +perl/dyn           +textprop
-browse             -footer             +persistent_undo    -tgetent
++builtin_terms     +gettext/dyn        +popupwin           +timers
+byte_offset        -hangul_input       -postscript         +title
+channel            +iconv/dyn          +printer            -toolbar
+cindent            +insert_expand      +profile            +user_commands
+clientserver       +ipv6               +python/dyn         +vartabs
+clipboard          +job                +python3/dyn        +vertsplit
+cmdline_compl      +jumplist           +quickfix           +vim9script
+cmdline_hist       +keymap             +reltime            +viminfo
+cmdline_info       +lambda             +rightleft          +virtualedit
+comments           +langmap            +ruby/dyn           +visual
+conceal            +libcall            +scrollbind         +visualextra
+cryptv             +linebreak          +signs              +vreplace
+cscope             +lispindent         +smartindent        +vtp
+cursorbind         +listcmds           +sodium/dyn         +wildignore
+cursorshape        +localmap           +sound              +wildmenu
+dialog_con         +lua/dyn            +spell              +windows
+diff               +menu               +startuptime        +writebackup
+digraphs           +mksession          +statusline         -xfontset
-dnd                +modify_fname       -sun_workshop       -xim
-ebcdic             +mouse              +syntax             -xpm_w32
+emacs_tags         -mouseshape         +tag_binary         -xterm_save
+eval               +multi_byte_ime/dyn -tag_old_static
      システム vimrc: "$VIM\vimrc"
      ユーザー vimrc: "$HOME\_vimrc"
   第2ユーザー vimrc: "$HOME\vimfiles\vimrc"
   第3ユーザー vimrc: "$VIM\_vimrc"
       ユーザー exrc: "$HOME\_exrc"
    第2ユーザー exrc: "$VIM\_exrc"
  デフォルトファイル: "$VIMRUNTIME\defaults.vim"
コンパイル: cl -c /W3 /GF /nologo -I. -Iproto -DHAVE_PATHDEF -DWIN32 -DHAVE_STDINT_H  -DFEAT_CSCOPE -DFEAT_TERMINAL -DFEAT_SOUND  -DFEAT_JOB_CHANNEL -DFEAT_IPV6 -DHAVE_INET_NTOP    -DHAVE_SODIUM -DDYNAMIC_SODIUM -DDYNAMIC_SODIUM_DLL=\"libsodium.dll\" /I "C:\projects\vim-win32-installer\dependencies\libsodium\include" -DWINVER=0x0601 -D_WIN32_WINNT=0x0601 /source-charset:utf-8 /MP /Ox /GL -DNDEBUG /Zl /MT /D_CRT_SECURE_NO_DEPRECATE /D_CRT_NONSTDC_NO_DEPRECATE -DFEAT_MBYTE_IME -DDYNAMIC_IME -DDYNAMIC_ICONV -DDYNAMIC_GETTEXT -DFEAT_LUA
-DDYNAMIC_LUA -DDYNAMIC_LUA_DLL=\"lua54.dll\" -DFEAT_PYTHON -DDYNAMIC_PYTHON
-DDYNAMIC_PYTHON_DLL=\"python27.dll\" -DFEAT_PYTHON3 -DDYNAMIC_PYTHON3 -DDYNAMIC_PYTHON3_DLL=\"python311.dll\" -DFEAT_MZSCHEME -I "C:\projects\vim-win32-installer\dependencies\racket\include" -DMZ_PRECISE_GC -DDYNAMIC_MZSCHEME -DDYNAMIC_MZSCH_DLL=\"libracket3m_dcgt6o.dll\" -DDYNAMIC_MZGC_DLL=\"libracket3m_dcgt6o.dll\" -DFEAT_PERL -DPERL_IMPLICIT_CONTEXT -DPERL_IMPLICIT_SYS -DDYNAMIC_PERL -DDYNAMIC_PERL_DLL=\"perl532.dll\" -DFEAT_RUBY -DDYNAMIC_RUBY -DDYNAMIC_RUBY_DLL=\"x64-msvcrt-ruby300.dll\" -DRUBY_VERSION=30 -DFEAT_HUGE /Fd.\ObjCULYHRZAMD64/ /Zi
リンク: link /nologo /opt:ref /LTCG oldnames.lib kernel32.lib advapi32.lib shell32.lib gdi32.lib  comdlg32.lib ole32.lib netapi32.lib uuid.lib user32.lib
 /machine:AMD64  libcmt.lib   /nodefaultlib:lua54.lib  /STACK:8388608  /nodefaultlib:python27.lib /nodefaultlib:python311.lib    winmm.lib WSock32.lib Ws2_32.lib   /PDB:vim.pdb -debug