Mapping.mapping_id does not resolve in api v4 explorer
@colemanw what is the right approach here - there is a foreign key - but civicrm_mapping only has name, not label etc -(I kinda see this table being deprecated over time too)
<field>
<name>mapping_id</name>
<type>int unsigned</type>
<title>Mapping ID</title>
<required>true</required>
<comment>Mapping to which this field belongs</comment>
<html>
<label>Mapping</label>
</html>
<add>1.2</add>
</field>
<foreignKey>
<name>mapping_id</name>
<table>civicrm_mapping</table>
<key>id</key>
<add>1.2</add>
<onDelete>CASCADE</onDelete>
</foreignKey>