$ git clone -n https://src.fedoraproject.org/rpms/rust-varbincode.git /var/lib/mock/f40-build-2040595-48368/root/chroot_tmpdir/scmroot/rust-varbincode
Cloning into '/var/lib/mock/f40-build-2040595-48368/root/chroot_tmpdir/scmroot/rust-varbincode'...
$ git fetch origin 0739fbe19ccfadc14b50d9b1154d67e75b82790c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-varbincode
 * [new ref]         0739fbe19ccfadc14b50d9b1154d67e75b82790c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0739fbe Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild