$ git clone -n https://src.fedoraproject.org/rpms/php-sebastian-diff5.git /var/lib/mock/f45-build-28368-629/root/chroot_tmpdir/scmroot/php-sebastian-diff5
Cloning into '/var/lib/mock/f45-build-28368-629/root/chroot_tmpdir/scmroot/php-sebastian-diff5'...
$ git fetch origin 00ed0a13ecb0283262e03165de82e1f55cea8ba7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/php-sebastian-diff5
 * [new ref]         00ed0a13ecb0283262e03165de82e1f55cea8ba7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 00ed0a1 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild