$ git clone -n https://src.fedoraproject.org/rpms/rust-pem0.8.git /var/lib/mock/f40-build-2653248-66900/root/chroot_tmpdir/scmroot/rust-pem0.8
Cloning into '/var/lib/mock/f40-build-2653248-66900/root/chroot_tmpdir/scmroot/rust-pem0.8'...
$ git fetch origin 50b294f5af95b2793dbb688f11186ea7b05b22ee:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pem0.8
 * [new ref]         50b294f5af95b2793dbb688f11186ea7b05b22ee -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 50b294f Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild