This field:
https://github.com/odoo/odoo/blob/625a648f227325468981a9e4a51e80b44132a45f/addons/stock/models/stock_move_line.py#L40

Allways shows the same value as create_date.

Could it be defined as stock.move related field?

Should it be written here?
https://github.com/odoo/odoo/blob/3c0337673385876922da95296e70a0b7b728f275/addons/stock/models/stock_move.py#L1048

@Tecnativa
product_uom_id = fields.Many2one('product.uom', 'Unit of Measure', required=True)
    product_qty = fields.Float(
        'Real Reserved Quantity', digits=0,
        compute='_compute_product_qty', inverse='_set_product_qty', store=True)
    product_uom_qty = fields.Float('Reserved', default=0.0, digits=dp.get_precision('Product Unit of Measure'), required=True)
    ordered_qty = fields.Float('Ordered Quantity', digits=dp.get_precision('Product Unit of Measure'))
    qty_done = fields.Float('Done', default=0.0, digits=dp.get_precision('Product Unit of Measure'), copy=False)
    package_id = fields.Many2one('stock.quant.package', 'Source Package', ondelete='restrict')
    lot_id = fields.Many2one('stock.production.lot', 'Lot')
    lot_name = fields.Char('Lot/Serial Number')
    result_package_id = fields.Many2one(
        'stock.quant.package', 'Destination Package',
        ondelete='restrict', required=False,
        help="If set, the operations are packed into this package")
    date = fields.Datetime('Date', default=fields.Datetime.now, required=True)
    owner_id = fields.Many2one('res.partner', 'Owner', help="Owner of the quants")
    location_id = fields.Many2one('stock.location', 'From', required=True)
    location_dest_id = fields.Many2one('stock.location', 'To', required=True)
    from_loc = fields.Char(compute='_compute_location_description')
    to_loc = fields.Char(compute='_compute_location_description')
    lots_visible = fields.Boolean(compute='_compute_lots_visible')
    state = fields.Selection(related='move_id.state', store=True)
    is_initial_demand_editable = fields.Boolean(related='move_id.is_initial_demand_editable')
    is_locked = fields.Boolean(related='move_id.is_locked', default=True, readonly=True)
    consume_line_ids = fields.Many2many('stock.move.line', 'stock_move_line_consume_rel', 'consume_line_id', 'produce_line_id', help="Technical link to see who consumed what. ")
    produce_line_ids = fields.Many2many('stock.move.line', 'stock_move_line_consume_rel', 'produce_line_id', 'consume_line_id', help="Technical link to see which line was produced with this. ")
    reference = fields.Char(related='move_id.reference', store=True)
    in_entire_package = fields.Boolean(compute='_compute_in_entire_package')
    @api.one
    def _compute_location_description(self):