fix: render all stage-scoped fields in Approval Step Responses

_build_approval_step_sections was skipping any field whose value was
absent from form_data, which meant approvers who left fields blank left
orphan section headers on the approval page, submission detail, and PDF
exports — the designed section/field structure silently collapsed down
to just the headers.

Stage-scoped fields now always render with their configured layout, and
fields the approver left blank render with an empty value cell. Covers
every surface that uses _build_approval_step_sections.

Bumps version to 0.71.1.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: matteius

CHANGELOG.md

@@ -7,6 +7,18 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.71.1] - 2026-04-16
+
+### Fixed
+- **Approval Step Responses no longer drops unfilled fields.** Stage-scoped
+  fields whose values were absent from `form_data` (i.e. the approver left
+  them blank) were being filtered out of the per-stage sections, leaving
+  section headers with nothing beneath them. Fields defined on a stage now
+  always render — absent values show as empty — so the form designer's
+  section/field structure is preserved on the approval page, submission
+  detail, and PDF exports regardless of which fields the approver
+  actually filled in.
+
 ## [0.71.0] - 2026-04-16
 
 ### Added

django_forms_workflows/views.py

@@ -3411,9 +3411,12 @@ def _build_approval_step_sections(submission):
                 )
                 continue
             lookup_key = f"{f['key']}_{swi_index}" if swi_index else f["key"]
-            if lookup_key not in form_data:
-                continue
-            raw_value = form_data[lookup_key]
+            # Always render stage-scoped fields so the section structure the
+            # form designer configured is preserved. Fields the approver
+            # left blank render with an empty value rather than being
+            # dropped (which left orphan section headers with nothing
+            # beneath them).
+            raw_value = form_data.get(lookup_key, "")
             field_type = f.get("field_type", "")
             if field_type == "currency" and raw_value not in (None, ""):
                 try:

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "django-forms-workflows"
-version = "0.71.0"
+version = "0.71.1"
 description = "Enterprise-grade, database-driven form builder with approval workflows and external data integration"
 license = "LGPL-3.0-only"
 readme = "README.md"