$ git clone -n https://src.fedoraproject.org/rpms/rust-crossbeam-channel0.4.git /var/lib/mock/f38-build-side-43-rust-devel-1412310-31441/root/chroot_tmpdir/scmroot/rust-crossbeam-channel0.4
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1412310-31441/root/chroot_tmpdir/scmroot/rust-crossbeam-channel0.4'...
$ git fetch origin 2559a426c10c19ea1b4b6bcd771f715eddf41985:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-crossbeam-channel0.4
 * [new ref]         2559a426c10c19ea1b4b6bcd771f715eddf41985 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2559a42 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild