When I call `vimdiff <(seq 3) <(seq 4)`, then switch to another terminal then switch back, the content in vim disappear. How to make the content persistent? Thanks.
$ vimdiff --version VIM - Vi IMproved 8.2 (2019 Dec 12, compiled Apr 1 2021 08:37:51) macOS version - x86_64 Included patches: 1-2681 Compiled by GitHub Actions Huge version with MacVim GUI. Features included (+) or not (-): +acl +file_in_path -mouse_sysmouse -tag_old_static +arabic +find_in_path +mouse_urxvt -tag_any_white +autocmd +float +mouse_xterm -tcl +autochdir +folding +multi_byte +termguicolors -autoservername -footer +multi_lang +terminal +balloon_eval +fork() -mzscheme +terminfo +balloon_eval_term +fullscreen +netbeans_intg +termresponse +browse +gettext +num64 +textobjects ++builtin_terms -hangul_input +odbeditor +textprop +byte_offset +iconv +packages +timers +channel +insert_expand +path_extra +title +cindent +ipv6 +perl/dyn +toolbar +clientserver +job +persistent_undo +transparency +clipboard +jumplist +popupwin +user_commands +cmdline_compl +keymap +postscript +vartabs +cmdline_hist +lambda +printer +vertsplit +cmdline_info +langmap +profile +virtualedit +comments +libcall +python/dyn +visual +conceal +linebreak +python3/dyn +visualextra +cryptv +lispindent +quickfix +viminfo +cscope +listcmds +reltime +vreplace +cursorbind +localmap +rightleft +wildignore +cursorshape +lua/dyn +ruby/dyn +wildmenu +dialog_con_gui +menu +scrollbind +windows +diff +mksession +signs +writebackup +digraphs +modify_fname +smartindent -X11 +dnd +mouse -sound -xfontset -ebcdic +mouseshape +spell +xim +emacs_tags +mouse_dec +startuptime -xpm +eval -mouse_gpm +statusline -xsmp +ex_extra -mouse_jsbterm -sun_workshop -xterm_clipboard +extra_search +mouse_netterm +syntax -xterm_save -farsi +mouse_sgr +tag_binary system vimrc file: "$VIM/vimrc" user vimrc file: "$HOME/.vimrc" 2nd user vimrc file: "~/.vim/vimrc" user exrc file: "$HOME/.exrc" system gvimrc file: "$VIM/gvimrc" user gvimrc file: "$HOME/.gvimrc" 2nd user gvimrc file: "~/.vim/gvimrc" defaults file: "$VIMRUNTIME/defaults.vim" system menu file: "$VIMRUNTIME/menu.vim" fall-back for $VIM: "/Applications/MacVim.app/Contents/Resources/vim" Compilation: clang -c -I. -Iproto -DHAVE_CONFIG_H -DFEAT_GUI_MACVIM -Wall -Wno-unknown-pragmas -pipe -DMACOS_X -DMACOS_X_DARWIN -g -O2 -arch x86_64 -arch arm64 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=1 -Wall -Wextra -Wshadow -Werror -Wno-error=missing-field-initializers -Wno-error=deprecated-declarations -Wno-error=unused-function Linking: clang -L. -fstack-protector-strong -L/usr/local/lib -L/usr/local/opt/libyaml/lib -L/usr/local/opt/openssl@1.1/lib -L/usr/local/opt/readline/lib -L. -fstack-protector-strong -L/usr/local/lib -L/usr/local/opt/libyaml/lib -L/usr/local/opt/openssl@1.1/lib -L/usr/local/opt/readline/lib -arch x86_64 -arch arm64 -L/usr/local/lib -o Vim -lm -lncurses -liconv /usr/local/lib/libintl.a -framework AppKit -fstack-protector -L/System/Library/Perl/5.18/darwin-thread-multi-2level/CORE -- -- You received this message from the "vim_use" maillist. Do not top-post! Type your reply below the text you are replying to. For more information, visit http://www.vim.org/maillist.php --- You received this message because you are subscribed to the Google Groups "vim_use" group. To unsubscribe from this group and stop receiving emails from it, send an email to vim_use+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/vim_use/1564e276-39b5-4f27-828e-f4544504fedan%40googlegroups.com.