Fix models comparison in Spring variable constructor #2104 (#2151)

Author: EgorkaKulikov

utbot-framework/src/main/kotlin/org/utbot/framework/codegen/tree/CgSpringVariableConstructor.kt

@@ -41,9 +41,12 @@ class CgSpringVariableConstructor(context: CgContext) : CgVariableConstructor(co
         return super.getOrCreateVariable(model, name)
     }
 
-    private fun findCgValueByModel(model: UtModel, modelToValueMap: Map<Set<UtModel>, CgValue>): CgValue? =
+    private fun findCgValueByModel(modelToFind: UtModel, modelToValueMap: Map<Set<UtModel>, CgValue>): CgValue? =
+        // Here we really need to compare models by reference.
+        // Standard equals is not appropriate because two models from different execution may have same `id`.
+        // Equals on `ModelId` is not appropriate because injected items from different execution have same `executionId`.
         modelToValueMap
-            .filter { it.key.contains(model) }
+            .filter { models -> models.key.any { it === modelToFind } }
             .entries
             .singleOrNull()
             ?.value