bus-message: use structured initialization to avoid use of unitialized memory
    
    As far as I can see, we would either reuse some values from a previously exited
    container or just random bytes from the heap.
    
    Should fix #10127.
    
    (cherry picked from commit cf81c68e96aa29d0c28b5d3a26d1de9aa1b53b85)
    
    Resolves: #1696224
    
    patch_name: 0161-bus-message-use-structured-initialization-to-avoid-u.patch
    present_in_specfile: true
    location_in_specfile: 161
    squash_commits: true