Filtering changed behaviour from 3.3.1

[peter-c-larsson]

Affected version

3.4.0 and 3.5.0

Bug description

The following code works for us in 3.3.1 when use filter on a single file in our setup. When upgrading to 3.4.0 and 3.5.0 the following code has stopped working and no filtering is taking place in our file db/changelog/db.changelog-client-secret.xml

        <resources>
            <resource>
                <filtering>true</filtering>
                <directory>src/main/resources</directory>
                <includes>
                    <include>db/changelog/db.changelog-client-secret.xml</include>
                </includes>
            </resource>
            <resource>
                <filtering>false</filtering>
                <directory>src/main/resources</directory>
                <includes>
                    <include>**</include>
                </includes>
            </resource>
        </resources>

The file that is being filtered looks like this:

  <property name="secret" value="${env.DEV_SECRET}" context="dev" />
  <property name="secret" value="${env.PROD_SECRET}" context="prod" />

With 3.3.1 the values are replaced with the correct env variables and in the newer versions it is being unchanged.

This could also be incorrect configuration that we have that has happened to have been working in previous versions and might be a variation of this bug: #453 and submitting it as a new bug in case it is a user failure where we should have configured it differently.