$ git clone -n https://src.fedoraproject.org/rpms/rust-target.git /var/lib/mock/f40-build-2039989-48314/root/chroot_tmpdir/scmroot/rust-target
Cloning into '/var/lib/mock/f40-build-2039989-48314/root/chroot_tmpdir/scmroot/rust-target'...
$ git fetch origin 09a2ef9e11e37fbefe1303e8a6a9c027e9e8fa24:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-target
 * [new ref]         09a2ef9e11e37fbefe1303e8a6a9c027e9e8fa24 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 09a2ef9 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild