$ git clone -n https://src.fedoraproject.org/rpms/rust-serial_test1.git /var/lib/mock/f40-build-2683222-67969/root/chroot_tmpdir/scmroot/rust-serial_test1
Cloning into '/var/lib/mock/f40-build-2683222-67969/root/chroot_tmpdir/scmroot/rust-serial_test1'...
$ git fetch origin 168472eb7ab0a0cb0d56d0d959d98446dcb83b73:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-serial_test1
 * [new ref]         168472eb7ab0a0cb0d56d0d959d98446dcb83b73 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 168472e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild