[IMP] runbot_merge: disable active test on batch fields

For post-mortem investigations and manipulations, they're inconvenient
as the batches are deactivated on success and failure.

forwardport/tests/test_weird.py

@@ -194,7 +194,7 @@ def test_failed_staging(env, config, make_repo):
     assert len(pr3_head) == 1
 
     assert not pr3_id.batch_id, "check that the PR indeed has no batch anymore"
-    assert not pr3_id.batch_ids
+    assert not pr3_id.batch_ids.filtered(lambda b: b.active)
 
     assert len(env['runbot_merge.batch'].search([
         ('prs', 'in', pr3_id.id),

runbot_merge/models/pull_requests.py

@@ -705,7 +705,7 @@ class PullRequests(models.Model):
     previous_failure = fields.Char(default='{}')
 
     batch_id = fields.Many2one('runbot_merge.batch', string="Active Batch", compute='_compute_active_batch', store=True)
-    batch_ids = fields.Many2many('runbot_merge.batch', string="Batches")
+    batch_ids = fields.Many2many('runbot_merge.batch', string="Batches", context={'active_test': False})
     staging_id = fields.Many2one(related='batch_id.staging_id', store=True)
     commits_map = fields.Char(help="JSON-encoded mapping of PR commits to actually integrated commits. The integration head (either a merge commit or the PR's topmost) is mapped from the 'empty' pr commit (the key is an empty string, because you can't put a null key in json maps).", default='{}')
 
@@ -1642,6 +1642,7 @@ class Stagings(models.Model):
 
     batch_ids = fields.One2many(
         'runbot_merge.batch', 'staging_id',
+        context={'active_test': False},
     )
     state = fields.Selection([
         ('success', 'Success'),