$ git clone -n https://src.fedoraproject.org/rpms/rust-elfcat.git /var/lib/mock/f39-build-1517065-35681/root/chroot_tmpdir/scmroot/rust-elfcat
Cloning into '/var/lib/mock/f39-build-1517065-35681/root/chroot_tmpdir/scmroot/rust-elfcat'...
$ git fetch origin 8a21f11d4059a87216245274bb03224c30ee2e2c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-elfcat
 * [new ref]         8a21f11d4059a87216245274bb03224c30ee2e2c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8a21f11 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild