diff --git a/addons/hr_timesheet_sheet/models/hr_timesheet_sheet.py b/addons/hr_timesheet_sheet/models/hr_timesheet_sheet.py
index 4b65828897c..f970d38ea32 100644
--- a/addons/hr_timesheet_sheet/models/hr_timesheet_sheet.py
+++ b/addons/hr_timesheet_sheet/models/hr_timesheet_sheet.py
@@ -68,9 +68,8 @@ class HrTimesheetSheet(models.Model):
              '\n* The \'Waiting Approval\' status is used to confirm the timesheet by user. '
              '\n* The \'Approved\' status is used when the users timesheet is accepted by his/her senior.')
     account_ids = fields.One2many('hr_timesheet_sheet.sheet.account', 'sheet_id', string='Analytic accounts', readonly=True)
-    company_id = fields.Many2one('res.company', string='Company')
-    department_id = fields.Many2one('hr.department', string='Department',
-        default=lambda self: self.env['res.company']._company_default_get())
+    company_id = fields.Many2one('res.company', string='Company', default=lambda self: self.env['res.company']._company_default_get())
+    department_id = fields.Many2one('hr.department', string='Department')
 
     @api.constrains('date_to', 'date_from', 'employee_id')
     def _check_sheet_date(self, forced_user_id=False):
diff --git a/addons/mail/models/mail_channel.py b/addons/mail/models/mail_channel.py
index 77d71993caa..ebd923ab8f8 100644
--- a/addons/mail/models/mail_channel.py
+++ b/addons/mail/models/mail_channel.py
@@ -49,7 +49,7 @@ class Channel(models.Model):
         ('channel', 'Channel')],
         'Channel Type', default='channel')
     description = fields.Text('Description')
-    uuid = fields.Char('UUID', size=50, index=True, default=lambda self: '%s' % uuid.uuid4())
+    uuid = fields.Char('UUID', size=50, index=True, default=lambda self: '%s' % uuid.uuid4(), copy=False)
     email_send = fields.Boolean('Send messages by email', default=False)
     # multi users channel
     channel_last_seen_partner_ids = fields.One2many('mail.channel.partner', 'channel_id', string='Last Seen')
diff --git a/doc/cla/corporate/merchise.md b/doc/cla/corporate/merchise.md
index d8d5e75f830..e4cbd3c3f95 100644
--- a/doc/cla/corporate/merchise.md
+++ b/doc/cla/corporate/merchise.md
@@ -20,3 +20,4 @@ Sergio Valdés sergiov@merchise.org
 Medardo Rodríguez med@merchise.org https://github.com/med-merchise
 Abel Firvida firvida@merchise.org
 Abel Firvida abel@merchise.org
+Mónica Díaz Pena monicadp@merchise.org  https://github.com/mdpena