units command in SPH example

Dear Steve And Georg,

There are some examples in examples/USER/sph directory. Among them there is an example with name water_collapse. The unit that have been used in this example is “lj”. When change this unit to another unit such as “si” or “cgs” without change other values such as mass , timestep, density, etc. all results are the same. I think it is a bug. Please clear me.

Thanks a lot