add test to cover the bug
add test to cover the bug

vogdb/cm,vogdb/cm,njam/CM,zazabe/cm,tomaszdurka/CM,vogdb/cm,vogdb/cm,tomaszdurka/CM,fauvel/CM,christopheschwyzer/CM,cargomedia/CM,christopheschwyzer/CM,alexispeter/CM,fauvel/CM,alexispeter/CM,tomaszdurka/CM,zazabe/cm,njam/CM,fauvel/CM,alexispeter/CM,mariansollmann/CM,njam/CM,fvovan/CM,fvovan/CM,fauvel/CM,tomaszdurka/CM,cargomedia/CM,zazabe/cm,mariansollmann/CM,njam/CM,zazabe/cm,fvovan/CM,mariansollmann/CM,cargomedia/CM,christopheschwyzer/CM,cargomedia/CM,alexispeter/CM,njam/CM,fauvel/CM,christopheschwyzer/CM,mariansollmann/CM,fvovan/CM,vogdb/cm,tomaszdurka/CM