>> I'm stuck here trying to allow different root-tag names on DomModel.
>> The DTD/model is exactly the same except for the DTD-URI/ID which is
>> mapped in
>> com.intellij.util.xml.DomFileDescription#registerNamespacePolicy for
>> my NamespaceKey.
>> I override
>> returning true and com.intellij.util.xml.DomFileDescription#isMyFile
>> returns true as expected - but I get no completion to work and also
>> my DomInspection only triggers on invalid attribute names, but not on
>> invalid values restricted by my DomModel.
>> Any further steps required?
A bug, certainly. Please try the upcoming EAP
Actually the EAP will be 7576, and the fix will go into 7577.
"Develop with Pleasure!"