$ git clone -n https://src.fedoraproject.org/rpms/rust-test-case1.git /var/lib/mock/f40-build-2651928-66889/root/chroot_tmpdir/scmroot/rust-test-case1
Cloning into '/var/lib/mock/f40-build-2651928-66889/root/chroot_tmpdir/scmroot/rust-test-case1'...
$ git fetch origin 439404e43b44a41807335a8289878bccf04d4cc5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-test-case1
 * [new ref]         439404e43b44a41807335a8289878bccf04d4cc5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 439404e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild