diff --git a/src/Twig/AppExtension.php b/src/Twig/AppExtension.php
new file mode 100644
index 0000000..88face7
--- /dev/null
+++ b/src/Twig/AppExtension.php
@@ -0,0 +1,21 @@
+<?php
+
+namespace App\Twig;
+
+use Twig\Extension\AbstractExtension;
+use Twig\TwigFilter;
+
+class AppExtension extends AbstractExtension
+{
+    public function getFilters(): array
+    {
+        return [
+            new TwigFilter('json_decode', [$this, 'jsonDecode']),
+        ];
+    }
+
+    public function jsonDecode(string $value)
+    {
+        return json_decode($value, true);
+    }
+}
diff --git a/templates/task/show.html.twig b/templates/task/show.html.twig
index 1bdf48a..6b603f1 100644
--- a/templates/task/show.html.twig
+++ b/templates/task/show.html.twig
@@ -68,7 +68,7 @@
 </div>
 {% endif %}
 
-{% if workflow_metadata(task, 'locking', task.status) %}
+{% if task.status == 'doing' %}
 <div class="row">
     <div class="col mb-3">
         <table class="table table-bordered table-sm">
@@ -94,6 +94,41 @@
 </div>
 {% endif %}
 
+{% if task.status == 'done' and task.changesetsResult is not empty %}
+<div class="row">
+    <div class="col mb-3">
+        <div class="accordion" id="changsetsAccordion">
+            {% set changesets = task.changesetsResult|json_decode %}
+            {% for changeset in changesets %}
+            {% set collapseId = 'collapse' ~ loop.index %}
+            <div class="accordion-item">
+                <h2 class="accordion-header">
+                    <button class="accordion-button collapsed" type="button" data-bs-toggle="collapse" data-bs-target="{{ '#' ~ collapseId }}" aria-expanded="false" aria-controls="{{ collapseId }}">
+                        {{ 'Groupe de modifications ' ~ changeset.id }}
+                    </button>
+                </h2>
+                <div id="{{ collapseId }}" class="accordion-collapse collapse" data-bs-parent="#changesetsAccordion">
+                    <div class="accordion-body">
+                        <p> Voir sur <a href="{{ 'https://www.openstreetmap.org/changeset/' ~ changeset.id }}" target="_blank">OSM</a> ou <a href="{{ 'https://osmcha.org/changesets/' ~ changeset.id }}" target="_blank">OSMCha</a></p>
+                        <table class="table table-bordered table-sm">
+                            <tbody>
+                                {% for key, value in changeset %}
+                                <tr>
+                                    <th scope="row">{{ key }}</th>
+                                    <td>{{ value }}</td>
+                                </tr>
+                                {% endfor %}
+                            </tbody>
+                        </table>
+                    </div>
+                </div>
+            </div>
+            {% endfor %}
+        </div>
+    </div>
+</div>
+{% endif %}
+
 <h2 class="mb-3">Carte</h2>
 <div class="row">
     <div class="col mb-3">