$ git clone -n https://src.fedoraproject.org/rpms/rust-scan_fmt.git /var/lib/mock/f45-build-44683-816/root/chroot_tmpdir/scmroot/rust-scan_fmt
Cloning into '/var/lib/mock/f45-build-44683-816/root/chroot_tmpdir/scmroot/rust-scan_fmt'...
$ git fetch origin 3dd73916c2d93b3daa1496f8ae3fd710cd68faa3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-scan_fmt
 * [new ref]         3dd73916c2d93b3daa1496f8ae3fd710cd68faa3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3dd7391 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild