Issue #362: Crash when switching to a layout mode without measurement file (dismine/valentina)

New issue 362: Crash when switching to a layout mode without measurement file https://bitbucket.org/valentinateam/valentina/issues/362/crash-when-switching-to-a-layout-mode

valentina177:

bug.JPG I try to create a detail without choosing measurement file and when I switch to a layout mode it crashes.