diff --git a/runbot/models/build_error.py b/runbot/models/build_error.py
index f307330c..433ebaa1 100644
--- a/runbot/models/build_error.py
+++ b/runbot/models/build_error.py
@@ -9,6 +9,7 @@ from dateutil.relativedelta import relativedelta
 from markupsafe import Markup
 from werkzeug.urls import url_join
 from odoo import models, fields, api
+from odoo.osv import expression
 from odoo.exceptions import ValidationError, UserError
 from odoo.tools import SQL
 
@@ -245,10 +246,7 @@ class BuildError(models.Model):
     def _onchange_test_tags(self):
         if self.test_tags and self.version_ids:
             self.tags_min_version_id = min(self.version_ids, key=lambda rec: rec.number)
-            self.tags_max_version_id = max(self.version_ids, key=lambda rec: rec.number)
-
-    @api.onchange('customer')
-    def _onchange_customer(self):
+            self.tags_max_version_id
         if not self.responsible:
             self.responsible = self.customer
 
@@ -322,6 +320,8 @@ class BuildError(models.Model):
         self.ensure_one()
         return Markup('<a href="%s">%s</a>') % (self._get_form_url(), self.id)
 
+
+    
     def action_view_errors(self):
         return {
             'type': 'ir.actions.act_window',
@@ -332,6 +332,32 @@ class BuildError(models.Model):
             'target': 'current',
         }
 
+    def action_search_similar(self):
+        domain = []
+        available_fields = self.env['runbot.build.error.content']._fields.keys()
+        for key, value in self.unique_qualifiers.items():
+            field = f'x_{key}'
+            if field not in available_fields:
+                continue  # todo add leaf for json?
+            leaf = [(field, '=', value)]
+            if key not in self.common_qualifiers:
+                domain += expression.OR([leaf, [(field, '=', False)]])
+            else:
+                domain += leaf
+        
+        search_context = {
+            'search_default_context_filter': True,
+            'filter_domain': domain,
+        }
+        return {
+            'type': 'ir.actions.act_window',
+            'views': [(False, 'list'), (False, 'form')],
+            'res_model': 'runbot.build.error.content',
+            'domain': domain,
+            'context': {'active_test': False, **search_context},
+            'target': 'current',
+        }
+
     def action_view_similary_qualified(self):
         return {
             'type': 'ir.actions.act_window',
diff --git a/runbot/views/build_error_views.xml b/runbot/views/build_error_views.xml
index a0e66684..5f3bc972 100644
--- a/runbot/views/build_error_views.xml
+++ b/runbot/views/build_error_views.xml
@@ -8,6 +8,7 @@
           <sheet>
               <widget name="web_ribbon" title="Test-tags" bg_color="bg-danger" invisible="not test_tags"/>
               <button name="action_view_errors" string="See all linked errors" type="object" class="oe_highlight"/>
+              <button name="action_search_similar" string="Search similar" type="object" class="oe_highlight"/>
               <group string="Base info">
                 <field name="name"/>
                 <field name="error_content_ids" readonly="1">
@@ -459,6 +460,7 @@
           <filter string="Test Tags" name="test_tagged_errors" domain="[('test_tags', '!=', False)]"/>
           <separator/>
           <filter string="Not seen in one month" name="not_seen_one_month" domain="[('last_seen_date','&lt;', (context_today() - datetime.timedelta(days=30)).strftime('%Y-%m-%d'))]"/>
+          <filter string="Qualifiers" name="context_filter" domain="context.get('filter_domain')" invisible="1"/>
         </search>
       </field>
     </record>