2ba8d08 tests: avoid ORM warnings

Authored and Committed by kparal 3 years ago
    tests: avoid ORM warnings
    
    There were a lot of warnings like this:
    ```
    SAWarning: Identity map already had an identity for $something, replacing it
    with newly flushed object. Are there load operations occurring inside of an
    event handler within the flush?
    ```
    
    I have no idea what I'm doing, but the warnings are now gone and tests still
    work.
    
    Related: https://pagure.io/fedora-qa/blockerbugs/pull-request/171
    
        
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