$ git clone -n https://src.fedoraproject.org/rpms/rust-os_info.git /var/lib/mock/f39-build-1523146-35987/root/chroot_tmpdir/scmroot/rust-os_info
Cloning into '/var/lib/mock/f39-build-1523146-35987/root/chroot_tmpdir/scmroot/rust-os_info'...
$ git fetch origin 7181b6b14357b13e6d7c1ed3bf9228a1e5e8395d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-os_info
 * [new ref]         7181b6b14357b13e6d7c1ed3bf9228a1e5e8395d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7181b6b Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild