Incorrect work of Project Comparison

### Problem description
For some reason project comparison generates several nested identical rows.
### Step to reproduce
Steps to reproduce the behaviour:
1. Import several policies with selected project schema. Also some fields in this schema should have filled properties (randomly).
2. Publish them, mint tokens.
3. Go to Projects, select all of them and open the Comparison http://localhost:4200/projects

### Expected behaviour
Everything is shown correctly

### Actual behaviour
For some reason there are nested identical rows for some (not all) properties. Also for some reason for several properties there are 2 values in the grid, and for other there is only 1 value. Check the gif