Support feedback:

When specifying the Spring version 2.0 DTD in a spring bean xml, the auto completion (and other refactoring functions like property
rename) stops working in the xml file.

This DTD does not work:
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN 2.0//EN"
"http://www.springframework.org/dtd/spring-beans-2.0.dtd">

This DTD works:
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">

Issue was resolved