$ git clone -n https://src.fedoraproject.org/rpms/rust-scan_fmt.git /var/lib/mock/f39-build-1522635-35943/root/chroot_tmpdir/scmroot/rust-scan_fmt
Cloning into '/var/lib/mock/f39-build-1522635-35943/root/chroot_tmpdir/scmroot/rust-scan_fmt'...
$ git fetch origin faf081a7be0277498d5428dd84310d340b5f7cf7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-scan_fmt
 * [new ref]         faf081a7be0277498d5428dd84310d340b5f7cf7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at faf081a Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild