$ git clone -n https://src.fedoraproject.org/rpms/rust-fern.git /var/lib/mock/f40-build-2608072-63701/root/chroot_tmpdir/scmroot/rust-fern
Cloning into '/var/lib/mock/f40-build-2608072-63701/root/chroot_tmpdir/scmroot/rust-fern'...
$ git fetch origin f33ecfadd82f3e600797deceb5ce4f9fd2a27476:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-fern
 * [new ref]         f33ecfadd82f3e600797deceb5ce4f9fd2a27476 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f33ecfa Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild