$ git clone -n https://src.fedoraproject.org/rpms/rust-p384.git /var/lib/mock/f40-build-2101310-50498/root/chroot_tmpdir/scmroot/rust-p384
Cloning into '/var/lib/mock/f40-build-2101310-50498/root/chroot_tmpdir/scmroot/rust-p384'...
$ git fetch origin 0c836d8a9d3afe90d25ea7e6e99981849059cf6d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-p384
 * [new ref]         0c836d8a9d3afe90d25ea7e6e99981849059cf6d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0c836d8 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild