BUG: Immune to spikes?

Hello everyone,
In level 25 of the tutorial levelpack you can go past some spikes just by standing on a moving block
.
Try it yourself, jump on the moving block in the left bottom and wait. Picture showing the problem:
You can still walk on that block, but leaving it kills you.
In level 25 of the tutorial levelpack you can go past some spikes just by standing on a moving block

Try it yourself, jump on the moving block in the left bottom and wait. Picture showing the problem:
You can still walk on that block, but leaving it kills you.