$ git clone -n https://src.fedoraproject.org/rpms/R-argon2.git /var/lib/mock/f40-build-789294-135700/root/chroot_tmpdir/scmroot/R-argon2
Cloning into '/var/lib/mock/f40-build-789294-135700/root/chroot_tmpdir/scmroot/R-argon2'...
$ git fetch origin 1b6b6b8dc5298490c74ce920de5a9dfcffe8c707:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-argon2
 * [new ref]         1b6b6b8dc5298490c74ce920de5a9dfcffe8c707 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1b6b6b8 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild