DMN15 — The "schemaLocation" relative URLs are broken

In DMNDI13.xsd:

<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:dmndi="https://www.omg.org/spec/DMN/20191111/DMNDI/"
xmlns:dc="http://www.omg.org/spec/DMN/20180521/DC/"
xmlns:di="http://www.omg.org/spec/DMN/20180521/DI/"
targetNamespace="https://www.omg.org/spec/DMN/20191111/DMNDI/"
elementFormDefault="qualified" attributeFormDefault="unqualified">

<xsd:import namespace="http://www.omg.org/spec/DMN/20180521/DC/"
schemaLocation="DC.xsd"/>
<xsd:import namespace="http://www.omg.org/spec/DMN/20180521/DI/"
schemaLocation="DI.xsd"/>

The schemaLocations for the DC/DI schemas that were introduced in DMN1.2 have not been upgraded to take into account the new URL for DMN 1.3
While the relative location worked for DMN 1.2 (v20180521), the relative URLs resolve to https://www.omg.org/spec/DMN/20191111/DC.xsd (resp DI.xsd)

This causes issues with tools such as IDEs and schema validators that try to resolve the URLs of the imports.
The schemaLocations should be updated to use full URLs

Schema locations work when downloaded

The DMN XML Schema files are primarily designed to work when downloaded into the same folder. We have reached out to Jürgen to also place them in appropriate folders on the OMG web server.