$ git clone -n https://src.fedoraproject.org/rpms/php-pear-Mail-Mime.git /var/lib/mock/f45-build-27974-627/root/chroot_tmpdir/scmroot/php-pear-Mail-Mime
Cloning into '/var/lib/mock/f45-build-27974-627/root/chroot_tmpdir/scmroot/php-pear-Mail-Mime'...
$ git fetch origin e9057c4dbfae6d616c5598670e75c997823b618b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-pear-Mail-Mime
 * [new ref]         e9057c4dbfae6d616c5598670e75c997823b618b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e9057c4 v1.10.13