FWIW, my setup includes: export EDITOR=~/bin/custom-editor
Where ~/bin/custom-editor contains:
#!/bin/sh
if [ $# = 1 ] && [ -z "${1##*/pass.*/*.txt}" ]; then
exec vim --cmd 'source /usr/share/doc/pass/examples/vim/redact_pass.vim'
"$1"
fi
exec /usr/bin/editor
(Change /usr/bin/editor to your preferred editor.)
