Query output size not always accurate #274

When setting the size parameter, such as:
https://validation-v2.brainsimulation.eu/results/?&size=250&from_index=0

We expect 250 results, but I currently get only 248 entries.

I tried the following combos:
size 10 = output 10
size 50 = output 50
size 100 = output 100
size 150 = output 150
size 200 = output 199
size 250 = output 248
size 350 = output 348
size 1000 = output 998

Andrew's comment:
Possibly because it excludes private models you don’t have access to after making the KG query. Fixing it will probably cause a performance hit.