$ git clone -n https://src.fedoraproject.org/rpms/php-pecl-mailparse.git /var/lib/mock/f39-build-1498187-34686/root/chroot_tmpdir/scmroot/php-pecl-mailparse
Cloning into '/var/lib/mock/f39-build-1498187-34686/root/chroot_tmpdir/scmroot/php-pecl-mailparse'...
$ git fetch origin fbe3c7f0454a51e15d567e22ec537f188ae4bffa:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-pecl-mailparse
 * [new ref]         fbe3c7f0454a51e15d567e22ec537f188ae4bffa -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fbe3c7f v3.1.6