$ git clone -n https://src.fedoraproject.org/rpms/rust-sscanf.git /var/lib/mock/f45-build-45192-821/root/chroot_tmpdir/scmroot/rust-sscanf
Cloning into '/var/lib/mock/f45-build-45192-821/root/chroot_tmpdir/scmroot/rust-sscanf'...
$ git fetch origin c8187349b40b0b9ef6eadb7d8d5e1bd0b95497b7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-sscanf
 * [new ref]         c8187349b40b0b9ef6eadb7d8d5e1bd0b95497b7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c818734 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild