title: measure columns in tabular model not displaying correct values in browser
body: <p>i have problem with tabular model where i often get same(max) values when browsing model by different categories.
  for example if i try to browse paymentType table with  measure columns from payment table  measure columns  have ok results, but if i try to browse rooms table with  measure columns from payment table  measure columns  have same(sum of all) results.
  I guess mistake is in the relation between payment table and renting table but i don't know how to fix it.
  code in tabular model is not in english so i tried to translate the best i could.
  thank you<img src="https://i.stack.imgur.com/KIerO.png" alt="![enter image description here">]<a href="https://i.stack.imgur.com/KIerO.png" rel="nofollow noreferrer">1</a></p>
  
  <p><a href="https://i.stack.imgur.com/LjajQ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/LjajQ.png" alt="enter image description here"></a></p>