bug: blinking light causes non-blinking-scripted lights to blink

Steps to reproduce the bug: Create 2 10+-meter-separated prims, 1 lit and 1 with a script that blinks the light like:

default
{
    state_entry()
    {
        while(1)
        {
            vector size = llGetScale()*4;
            llSetPrimitiveParams([PRIM_POINT_LIGHT,1,<1,1,1>,1,size.z,2]);
            llSleep(1);
            llSetPrimitiveParams([PRIM_POINT_LIGHT,0,<1,1,1>,1,size.z,2]);
            llSleep(1);
        }
    }
}

Observed results: The non-scripted lit prim starts to blink in-sync with the scripted blinking lit prim. Moving the non-scripted lit prim within about 10m to the scripted blinking lit prim stops it from blinking.

Expected results: Scripted blinking lit prims shouldn't affect non-scripted lit prims.