Description Michael Clay 2010-05-02 17:19:32 EDT

to reproduce:

prereq: java project with xtext nature and enabled auto build 

1. create a file named bar.dmodel containing

entity Bar {
}

2. close the 'bar.dmodel' editor

3. create a file named foo.dmodel containing

entity Foo {
	attr bar : Bar
}

4. close the 'foo.dmodel' editor

5. within the package explorer select,copy and paste the bar.dmodel file to create a file copy 
i.e. accept the suggested default and name it  'Copy of bar.dmodel' file 

6. the problems view now shows an error marker for foo.dmodel: 'Missing attribute type Bar'

7. delete the previously created 'Copy of bar.dmodel' file 

8. the problem view still shows the meanwhile wrong error marker :  'Missing attribute type Bar'

cause: invalid builderstate due to duplicate names within the same container scope?