ed24ca8 Module builds now remember what module they reused for building.

Authored and Committed by mcurlej 4 years ago
    Module builds now remember what module they reused for building.
    
    There was a race condition, when 2 builds where build in the same time.
    There was an issue that after one has finished the other reused the new build
    for reuse and not the one it started with.
    
    Ticket-ID: FACTORY-3862
    
    Signed-off-by: Martin Curlej <mcurlej@redhat.com>