block SIGINT while powerlevel10k is running

internal/p10k.zsh

@@ -1,4 +1,4 @@
-if [[ $__p9k_sourced != 10 ]]; then
+if [[ $__p9k_sourced != 11 ]]; then
   >&2 print -P ""
   >&2 print -P "[%F{1}ERROR%f]: Corrupted powerlevel10k installation."
   >&2 print -P ""
@@ -5244,7 +5244,8 @@ _p9k_prompt_haskell_stack_init() {
 # YSU_HARDCORE=1. See https://github.com/romkatv/powerlevel10k/issues/427.
 _p9k_preexec1() {
   _p9k_restore_special_params
-  (( ${+functions[TRAPINT]} )) || trap - INT
+  unset __p9k_trapint
+  trap - INT
 }
 
 _p9k_preexec2() {
@@ -6446,15 +6447,21 @@ _p9k_trapint() {
 _p9k_precmd() {
   __p9k_new_status=$?
   __p9k_new_pipestatus=($pipestatus)
+
+  trap "" INT
+
   [[ -o ksh_arrays ]] && __p9k_ksh_arrays=1 || __p9k_ksh_arrays=0
   [[ -o sh_glob ]] && __p9k_sh_glob=1 || __p9k_sh_glob=0
   _p9k_restore_special_params
 
   _p9k_precmd_impl
 
-  (( ${+functions[TRAPINT]} )) || trap '_p9k_trapint; return 130' INT
   [[ ${+__p9k_instant_prompt_active} == 0 || -o no_prompt_cr ]] || __p9k_instant_prompt_active=2
   setopt no_local_options no_prompt_bang prompt_percent prompt_subst prompt_cr prompt_sp
+
+  # See https://www.zsh.org/mla/workers/2020/msg00612.html for the reason behind __p9k_trapint.
+  typeset -g __p9k_trapint='_p9k_trapint; return 130'
+  trap $__p9k_trapint INT
 }
 
 function _p9k_reset_prompt() {

powerlevel10k.zsh-theme

@@ -21,6 +21,8 @@
 (( $+__p9k_intro )) || {
   # Note: leading spaces before `local` are important. Otherwise Antigen will remove `local` (!!!).
   typeset -gr __p9k_intro_base='emulate -L zsh -o no_hist_expand -o extended_glob -o no_prompt_bang -o prompt_percent -o no_prompt_subst -o no_aliases -o no_bg_nice -o typeset_silent
+  trap "" INT
+  trap "trap ${(q)__p9k_trapint:-} INT" EXIT
   local -a match mbegin mend
   local -i MBEGIN MEND OPTIND
   local MATCH OPTARG IFS=$'\'' \t\n\0'\'
@@ -54,7 +56,7 @@ function _p9k_init_locale() {
   if [[ $__p9k_dump_file != $__p9k_instant_prompt_dump_file ]] && (( ! $+functions[_p9k_preinit] )) && source $__p9k_dump_file 2>/dev/null && (( $+functions[_p9k_preinit] )); then
     _p9k_preinit
   fi
-  typeset -gr __p9k_sourced=10
+  typeset -gr __p9k_sourced=11
   if [[ $ZSH_VERSION == (5.<1->*|<6->.*) ]]; then
     if [[ -w $__p9k_root_dir && -w $__p9k_root_dir/internal && -w $__p9k_root_dir/gitstatus ]]; then
       local f