I would like to extend the `l10n_in` localization in my custom module `test_module` by adding additional accounts to the Chart of Accounts `l10n_in.indian_chart_template_standard`.

Defined `account.account.template` XML data containing entries like:

        <record model="account.account.template" id="p10100">
            <field name="name">Test Account Receivable</field>
            <field name="code">10100</field>
            <field name="user_type_id" ref="account.data_account_type_current_assets"/>
            <field name="reconcile" eval="False"/>
            <field name="chart_template_id" ref="l10n_in.indian_chart_template_standard"/>
        </record>

I have also defined an XML to load the templates for companies:

    <data noupdate="0">
        <function model="account.chart.template" name="try_loading_for_current_company">
            <value eval="[ref('l10n_in.indian_chart_template_standard')]"/>
        </function>
    </data>

But installing `test_module` on a new database results in following error (because the journals are already created by `l10n_in` module and it tries to load again?)

odoo.tools.convert.ParseError: "duplicate key value violates unique constraint "account_journal_code_company_uniq"
DETAIL:  Key (code, name, company_id)=(INV, Tax Invoices, 1) already exists.
" while parsing /opt/odoo/addons/test_module/data/account_chart_template_data.xml:4, near
<function model="account.chart.template" name="try_loading_fpos_for_current_company">
            <value eval="[ref('l10n_in.indian_chart_template_standard')]"/>
        </function>

What is the best practice to handle such cases properly in code?