$ git clone -n https://src.fedoraproject.org/rpms/php-pecl-msgpack.git /var/lib/mock/f45-build-28151-628/root/chroot_tmpdir/scmroot/php-pecl-msgpack
Cloning into '/var/lib/mock/f45-build-28151-628/root/chroot_tmpdir/scmroot/php-pecl-msgpack'...
$ git fetch origin 4823c628f5ec5f8d9e608fe012da10bd7b525e3c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-pecl-msgpack
 * [new ref]         4823c628f5ec5f8d9e608fe012da10bd7b525e3c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4823c62 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild