$ git clone -n https://src.fedoraproject.org/rpms/R-uuid.git /var/lib/mock/f40-build-2271660-54891/root/chroot_tmpdir/scmroot/R-uuid
Cloning into '/var/lib/mock/f40-build-2271660-54891/root/chroot_tmpdir/scmroot/R-uuid'...
$ git fetch origin 6d2fcb82a54a029924415dd7799df1d7347f536d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-uuid
 * [new ref]         6d2fcb82a54a029924415dd7799df1d7347f536d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6d2fcb8 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild