Should sorting filter a value?

[joepio]

Because of how I've implemented sorting, sorting now results in a filtered list. If the sorter property value is not present in a resource, it will be left out of the collection.

example: https://atomicdata.dev/collections?sort_by=https%3A%2F%2Fatomicdata.dev%2Fproperties%2Fdescription

Question is: is this OK? Is this what users will expect? I know it's not what I tested for in the sort functions themselves, it's a side effect happening in the Query Index.

On extra complex situation, is with false boolean values. I've decided to interpret no value to be the same as false, so when you sort a boolean value, you only see true values.