Move to layer collects all objects on all layers

Ah did anybody notice this as well.

When you select one object hit M and select a new layer
Blender collects now all objects on that layer.

This is on an OS X Build.

I just downloaded a new build today and it seems to be gone.

Was that anything I clicked anywhere???

Not happening in 2.53beta, Windows 32 bit

Never happened to me as well in 32bit Windows Vista.

strange - I had this with few builds.

But all works with the new build.