$ git clone -n https://src.fedoraproject.org/rpms/vo-amrwbenc.git /var/lib/mock/f45-build-38184-722/root/chroot_tmpdir/scmroot/vo-amrwbenc
Cloning into '/var/lib/mock/f45-build-38184-722/root/chroot_tmpdir/scmroot/vo-amrwbenc'...
$ git fetch origin cc3a98d9f96249ea1a6fbee0ce45624a2e886e73:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vo-amrwbenc
 * [new ref]         cc3a98d9f96249ea1a6fbee0ce45624a2e886e73 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cc3a98d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild