$ git clone -n https://src.fedoraproject.org/rpms/rust-sval_derive_macros.git /var/lib/mock/f41-build-side-1-3134924-39764/root/chroot_tmpdir/scmroot/rust-sval_derive_macros
Cloning into '/var/lib/mock/f41-build-side-1-3134924-39764/root/chroot_tmpdir/scmroot/rust-sval_derive_macros'...
$ git fetch origin 71eebf24bb5fba9c6a38b3238b1ef0ce8ec44b0c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-sval_derive_macros
 * [new ref]         71eebf24bb5fba9c6a38b3238b1ef0ce8ec44b0c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 71eebf2 no longer needed