$ git clone -n https://src.fedoraproject.org/rpms/rust-addr.git /var/lib/mock/f45-build-39984-765/root/chroot_tmpdir/scmroot/rust-addr
Cloning into '/var/lib/mock/f45-build-39984-765/root/chroot_tmpdir/scmroot/rust-addr'...
$ git fetch origin b04c3da68a6939ff65040436ae38fc9bcc12a653:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-addr
 * [new ref]         b04c3da68a6939ff65040436ae38fc9bcc12a653 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b04c3da Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild