Saving of annotations and relations does not always work properly
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                 Key: UIMA-1468
                 URL: https://issues.apache.org/jira/browse/UIMA-1468
             Project: UIMA
          Issue Type: Bug
          Components: CasEditor
    Affects Versions: 2.2.2
            Reporter: Peter Prettenhofer


We have encountered a problem concerning saving manually annotated documents 
with the Apache UIMA CasEditor.
In short, not all annotations and relations are always saved when saving an xmi 
file. That is, oftentimes we save an annotated document and reopen it with the 
annotation editor, some of the annotations and all relations are missing.

We are not quite sure what the underlying problem is and we even didn't manage 
to always reproduce it, but this is what we've done and observed:

After importing a text file (.txt) and opening its corresponding xmi file with 
the annotation editor we annotated some entities and created relations among 
them afterwards. We then saved and closed that file. Reopening it again, in 
most cases the first couple of annotations still existed. However, subsequent 
annotations and, especially, all relations were missing.
An interesting observation that might help to find the actual problem is the 
following: When we annotated and saved the same previously edited document 
again, everything worked fine, i.e. all annotations and relations had actually 
been saved.

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