Refactoring

* moves adding of deduction into Intervention and EcoAccount model
* hardens against circular import issues

compensation/models/compensation.py

@@ -15,7 +15,6 @@ from django.utils.translation import gettext_lazy as _
 from compensation.managers import CompensationManager
 from compensation.models import CompensationState, CompensationAction
 from compensation.utils.quality import CompensationQualityChecker
-from intervention.models import Responsibility, Intervention
 from konova.models import BaseObject, AbstractDocument, Geometry, Deadline, generate_document_file_upload_path
 from konova.settings import DEFAULT_SRID_RLP, LANIS_LINK_TEMPLATE
 from user.models import UserActionLogEntry, UserAction
@@ -28,7 +27,7 @@ class AbstractCompensation(BaseObject):
 
     """
     responsible = models.OneToOneField(
-        Responsibility,
+        "intervention.Responsibility",
         on_delete=models.SET_NULL,
         null=True,
         blank=True,
@@ -186,7 +185,7 @@ class Compensation(AbstractCompensation, CEFMixin, CoherenceMixin):
     Regular compensation, linked to an intervention
     """
     intervention = models.ForeignKey(
-        Intervention,
+        "intervention.Intervention",
         on_delete=models.CASCADE,
         null=True,
         blank=True,