Fix for prefetch related

[collerek]

Resolves: #906

fix prefetch related merging same relations refering to the same children models

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (1ed0d5a) to head (215acc1).

Additional details and impacted files

@@            Coverage Diff            @@
##            master     #1275   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          203       203           
  Lines        14719     14791   +72     
=========================================
+ Hits         14719     14791   +72     

Files	Coverage Δ
ormar/fields/foreign_key.py	100.00% <100.00%> (ø)
ormar/fields/many_to_many.py	100.00% <100.00%> (ø)
ormar/models/mixins/__init__.py	100.00% <ø> (ø)
ormar/models/modelproxy.py	100.00% <ø> (ø)
ormar/models/newbasemodel.py	100.00% <ø> (ø)
ormar/queryset/queries/prefetch_query.py	100.00% <100.00%> (ø)
ormar/queryset/queryset.py	100.00% <100.00%> (ø)
ormar/queryset/utils.py	100.00% <100.00%> (ø)
...elations/test_prefetch_related_with_same_models.py	100.00% <100.00%> (ø)
tests/test_utils/test_queryset_utils.py	100.00% <ø> (ø)

[codspeed-hq]

CodSpeed Performance Report

Merging #1275 will degrade performances by 21.72%

_{Comparing fix-prefetch-related (215acc1) with master (1ed0d5a)}

Summary

⚡ 2 improvements
❌ 5 (👁 5) regressions
✅ 77 untouched benchmarks

Benchmarks breakdown

	Benchmark	master	fix-prefetch-related	Change
👁	test_max[250]	10.4 ms	13.2 ms	-21.51%
👁	test_min[1000]	12.7 ms	16.3 ms	-21.72%
👁	test_making_and_inserting_models_in_bulk[10]	18.5 ms	20.9 ms	-11.51%
⚡	test_deleting_all[500]	11.8 ms	9.7 ms	+22.12%
⚡	test_exists[1000]	14.9 ms	11.3 ms	+32.38%
👁	test_first[250]	10.2 ms	12.9 ms	-20.49%
👁	test_get_or_none[250]	10.3 ms	13.1 ms	-20.91%