$ git clone -n https://src.fedoraproject.org/rpms/php-phpunit-git.git /var/lib/mock/f45-build-28145-628/root/chroot_tmpdir/scmroot/php-phpunit-git
Cloning into '/var/lib/mock/f45-build-28145-628/root/chroot_tmpdir/scmroot/php-phpunit-git'...
$ git fetch origin 9858b4c78e1ed18634169a830a4cdad264ba24b5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-phpunit-git
 * [new ref]         9858b4c78e1ed18634169a830a4cdad264ba24b5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9858b4c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild