$ git clone -n https://src.fedoraproject.org/rpms/php-pecl-msgpack.git /var/lib/mock/f38-build-side-42-init-devel-1056798-29765/root/chroot_tmpdir/scmroot/php-pecl-msgpack
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1056798-29765/root/chroot_tmpdir/scmroot/php-pecl-msgpack'...
$ git fetch origin 134bf5cb1804ddb49a8379b8864a0b320a77a8d3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-pecl-msgpack
 * [new ref]         134bf5cb1804ddb49a8379b8864a0b320a77a8d3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 134bf5c v2.2.0RC2