Change commit author history based on email across all branches

start.sh

#!/bin/sh
GIT_REPOSITORY="https://github.com/user/repo.git"
OLD_EMAIL="your-old-email@example.com"
CORRECT_NAME="Your Correct Name"
CORRECT_EMAIL="your-correct-email@example.com"

git clone --bare $GIT_REPOSITORY TMP_REPO_FIX
cd TMP_REPO_FIX

git filter-branch --env-filter '
if [ "$GIT_COMMITTER_EMAIL" = "$OLD_EMAIL" ]
then
    export GIT_COMMITTER_NAME="$CORRECT_NAME"
    export GIT_COMMITTER_EMAIL="$CORRECT_EMAIL"
fi
if [ "$GIT_AUTHOR_EMAIL" = "$OLD_EMAIL" ]
then
    export GIT_AUTHOR_NAME="$CORRECT_NAME"
    export GIT_AUTHOR_EMAIL="$CORRECT_EMAIL"
fi
' --tag-name-filter cat -- --branches --tags

git push --force --tags origin 'refs/heads/*'

cd ..
rm -rf TMP_REPO_FIX/