Fix bottomRightBrickIdxDelta inference after !972 when rect_slice_flag = 1 and...
Fix bottomRightBrickIdxDelta inference after !972 (merged) when rect_slice_flag = 1 and single_brick_per_slice_flag = 1
Fix bottomRightBrickIdxDelta inference after !972 (merged) when rect_slice_flag = 1 and single_brick_per_slice_flag = 1