#36 Quality checks

* adds unchecking/unrecording of interventions in case of post-check|post-record editing

compensation/models.py

@@ -221,11 +221,12 @@ class Compensation(AbstractCompensation):
 
     def save(self, *args, **kwargs):
         if self.identifier is None or len(self.identifier) == 0:
-            # Create new identifier
-            new_id = self.generate_new_identifier()
-            while Compensation.objects.filter(identifier=new_id).exists():
-                new_id = self.generate_new_identifier()
-            self.identifier = new_id
+            # Create new identifier is none was given
+            self.identifier = self.generate_new_identifier()
+
+        # Before saving, make sure a given identifier has not been taken already in the meanwhile
+        while Compensation.objects.filter(identifier=self.identifier).exclude(id=self.id).exists():
+            self.identifier = self.generate_new_identifier()
         super().save(*args, **kwargs)
 
     def get_LANIS_link(self) -> str:
@@ -368,11 +369,12 @@ class EcoAccount(AbstractCompensation, RecordableMixin):
 
     def save(self, *args, **kwargs):
         if self.identifier is None or len(self.identifier) == 0:
-            # Create new identifier
-            new_id = self.generate_new_identifier()
-            while EcoAccount.objects.filter(identifier=new_id).exists():
-                new_id = self.generate_new_identifier()
-            self.identifier = new_id
+            # Create new identifier if none was given
+            self.identifier = self.generate_new_identifier()
+
+        # Before saving, make sure the given identifier is not used, yet
+        while EcoAccount.objects.filter(identifier=self.identifier).exclude(id=self.id).exists():
+            self.identifier = self.generate_new_identifier()
         super().save(*args, **kwargs)
 
     @property