hi there,
we are using logback in our spring boot application and all our logback related configuration is in the `logback-spring.xml` file ad we configure  `springProfile` for different environments in the xml file like this

<springProfile name="local,dev">
    <root level="DEBUG">
        <appender-ref ref="console"/>
    </root>
</springProfile>

after this configuration if we want to add other environment property, it must be added to this `springProfile` first otherwise our application failed to start with newly added property file.

for example if I just add a new property file called `application-uat.yml` and directly start the application with this property file, our application failed to start. for fixing this I need to add this property name in the `SpringProfile` configuration like this `<springProfile name="local,dev,uat">`

we think logback rather than directly block our app start should have a default value for newly added property file, do you have anything to share with us? thank you

regards,
yaer