$ git clone -n https://src.fedoraproject.org/rpms/resalloc-aws.git /var/lib/mock/f45-build-34473-687/root/chroot_tmpdir/scmroot/resalloc-aws
Cloning into '/var/lib/mock/f45-build-34473-687/root/chroot_tmpdir/scmroot/resalloc-aws'...
$ git fetch origin df5b3b90950d0ec0aaeab58514858bf1c15286b8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/resalloc-aws
 * [new ref]         df5b3b90950d0ec0aaeab58514858bf1c15286b8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at df5b3b9 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild