I've got two models: Person, and Witness, which inherits from Person:

class Person(models.Model):
    _name = 'ufodata.person'

    first_name = fields.Char()
    middle_name = fields.Char()
    surname = fields.Char()
    age = fields.Integer()
    birthday = fields.Date()
    obit = fields.Date()
    gender = fields.Selection([
        ('male', 'Male'),
        ('female', 'Female'),
        ('other', 'Other')
    ], default="male", tracking=True)
    addresses = fields.One2many('ufodata.address', 'resident', string='Addresses')

    def name_get(self):
        result = []
        for record in self:
            result.append((record.id, "%s %s %s" % (record.first_name, record.middle_name, record.surname)))
        return result

class Witness(models.Model):
    _name = 'ufodata.witness'
    _inherit = {'ufodata.person'}
    _rec_name = 'code_name'

    code_name = fields.Char()
    sightings = fields.Many2many('ufodata.sighting', 'sighting_witness_rel', string="Sightings")

I've got also two list views (I'll omit the form views, as inheriting them works fine):

<odoo>
    <record id="view_tree_person" model="ir.ui.view">
        <field name="name">Person List</field>
        <field name="model">ufodata.person</field>
        <field name="arch" type="xml">
            <tree decoration-bf="first_name"
                  decoration-info="surname">
                    <field name="first_name" />
                    <field name="middle_name" />
                    <field name="surname" />
                    <field name="age" />
                    <field name="birthday" />
                    <field name="obit" />
                    <field name="gender" />
                    <field name="addresses" widget="many2many_tags" />
            </tree>
        </field>
    </record>
</odoo>

<odoo>
    <record id="view_tree_witness" model="ir.ui.view">
        <field name="name">Witness List</field>
        <field name="model">ufodata.witness</field>
        <field name="inherit_id" ref="ufodata_app.view_tree_person" />
        <field name="arch" type="xml">
            <tree>
                <field name="code_name" />
                <field name="sightings" widget="many2many_tags" />
            </tree>
        </field>
    </record>
</odoo>

Now inheriting the list view is NOT working.
(1) view_tree_witness will always show the "code_name" field in a column and nothing else.
(2) If I omit the "inherit_id" field entirely, inheritage will be assumed from the model and "code_name" is not found, producing an error
(3) The many2many field "sightings" is never shown
(4) If I add fields from the base view within the <tree> tag, they do not show up
            <tree>
                <field name="code_name" />
                <field name="sightings" widget="many2many_tags" /> # not showing
                <field name="first_name" /> # not showing
            </tree>

To make it clear: none of these problems occur in form view, they are a tree view matter only. If I don't break the code entirely, I always 
will have only one column in my view showing the code_name.