diff --git a/runbot/models/batch.py b/runbot/models/batch.py
index 0d064ab6..5e965570 100644
--- a/runbot/models/batch.py
+++ b/runbot/models/batch.py
@@ -181,11 +181,13 @@ class Batch(models.Model):
         dependency_repos = triggers.mapped('dependency_ids')
         all_repos = triggers.mapped('repo_ids') | dependency_repos
         missing_repos = all_repos - pushed_repo
+        foreign_projects = dependency_repos.mapped('project_id') - project
 
         ######################################
         # Find missing commits
         ######################################
         def _fill_missing(branch_commits, match_type):
+            used_branches = []
             if branch_commits:
                 for branch, commit in branch_commits.items():  # branch first in case pr is closed.
                     nonlocal missing_repos
@@ -203,6 +205,8 @@ class Batch(models.Model):
                             values['merge_base_commit_id'] = commit.id
                         self.write({'commit_link_ids': [(0, 0, values)]})
                         missing_repos -= commit.repo_id
+                        used_branches.append(branch)
+            return used_branches
 
         # CHECK branch heads consistency
         branch_per_repo = {}
@@ -249,6 +253,14 @@ class Batch(models.Model):
                 if batches:
                     self.base_reference_batch_id = batches[0]
 
+            if missing_repos and bundle.always_use_foreign and foreign_projects:
+                self._log('Starting by filling foreign repo')
+                foreign_bundles = bundle.search([('name', '=', bundle.name), ('project_id', 'in', foreign_projects.ids)])
+                used_branches = _fill_missing({branch: branch.head for branch in foreign_bundles.mapped('branch_ids').sorted('is_pr', reverse=True)}, 'head')
+                if used_branches:
+                    commits = ', '.join([f'[{branch.repo_id.name}]({branch.bundle_id.name})' for branch in used_branches])
+                    self._log(f'Found {len(used_branches)} commits in foreigh repo: {commits}')
+
             batch = self.base_reference_batch_id
             if batch:
                 if missing_repos:
@@ -279,14 +291,9 @@ class Batch(models.Model):
 
         # 4. FIND missing commit in foreign project
         if missing_repos:
-            foreign_projects = dependency_repos.mapped('project_id') - project
             if foreign_projects:
-                self._log('Not all commit found. Fallback on foreign base branches heads.')
-                foreign_bundles = bundle.search([('name', '=', bundle.name), ('project_id', 'in', foreign_projects.ids)])
-                _fill_missing({branch: branch.head for branch in foreign_bundles.mapped('branch_ids').sorted('is_pr', reverse=True)}, 'head')
-                if missing_repos:
-                    foreign_bundles = bundle.search([('name', '=', bundle.base_id.name), ('project_id', 'in', foreign_projects.ids)])
-                    _fill_missing({branch: branch.head for branch in foreign_bundles.mapped('branch_ids')}, 'base_head')
+                base_foreign_bundles = bundle.search([('name', '=', bundle.base_id.name), ('project_id', 'in', foreign_projects.ids)])
+                _fill_missing({branch: branch.head for branch in base_foreign_bundles.mapped('branch_ids')}, 'base_head')
 
         # CHECK missing commit
         if missing_repos:
diff --git a/runbot/models/bundle.py b/runbot/models/bundle.py
index 266d2eb2..e6681062 100644
--- a/runbot/models/bundle.py
+++ b/runbot/models/bundle.py
@@ -7,8 +7,6 @@ from collections import defaultdict
 from odoo import models, fields, api, tools
 from ..common import dt2time, s2human_long
 
-_logger = logging.getLogger(__name__)
-
 
 class Bundle(models.Model):
     _name = 'runbot.bundle'
@@ -23,6 +21,7 @@ class Bundle(models.Model):
     no_build = fields.Boolean('No build')
     no_auto_run = fields.Boolean('No run')
     build_all = fields.Boolean('Force all triggers')
+    always_use_foreign = fields.Boolean('Use foreigh bundle', help='By default, check for the same bundle name in another project to fill missing commits.', default=lambda self: self.project_id.always_use_foreign)
     modules = fields.Char("Modules to install", help="Comma-separated list of modules to install and test.")
 
     batch_ids = fields.One2many('runbot.batch', 'bundle_id')
diff --git a/runbot/models/project.py b/runbot/models/project.py
index 6e203648..79acf60a 100644
--- a/runbot/models/project.py
+++ b/runbot/models/project.py
@@ -17,6 +17,8 @@ class Project(models.Model):
     token = fields.Char("Github token", groups="runbot.group_runbot_admin")
     master_bundle_id = fields.Many2one('runbot.bundle', string='Master bundle')
     dummy_bundle_id = fields.Many2one('runbot.bundle', string='Dummy bundle')
+    always_use_foreign = fields.Boolean('Use foreigh bundle', help='By default, check for the same bundle name in another project to fill missing commits.', default=False)
+
 
     @api.model_create_multi
     def create(self, vals_list):
diff --git a/runbot/views/bundle_views.xml b/runbot/views/bundle_views.xml
index 34a095f8..42fff982 100644
--- a/runbot/views/bundle_views.xml
+++ b/runbot/views/bundle_views.xml
@@ -8,6 +8,7 @@
                 <group>
                     <field name="name"/>
                     <field name="keep_sticky_running"/>
+                    <field name="always_use_foreign"/>
                     <field name="dockerfile_id"/>
                     <field name="group_ids"/>
                     <field name="trigger_ids"/>
@@ -58,6 +59,7 @@
                             <field name="no_auto_run"/>
                             <field name="priority"/>
                             <field name="build_all"/>
+                            <field name="always_use_foreign"/>
                             <field name="dockerfile_id"/>
                             <field name="host_id" readonly="0"/>
                             <field name="commit_limit"/>