[Bug 1562839] New: Second instance of application crashes the first one

https://bugzilla.redhat.com/show_bug.cgi?id=1562839

Bug ID: 1562839
           Summary: Second instance of application crashes the first one
           Product: Fedora
           Version: 27
         Component: perl-Gtk2-Unique
          Severity: medium
          Assignee: [e-mail]
          Reporter: [e-mail]
        QA Contact: [e-mail]
                CC: [e-mail],
                    [e-mail]
   External Bug ID: Red Hat Bugzilla 1537008

Description of problem:
Second instance of Shutter crashes the first one. Please include following fix
to perl-Gtk2-Unique:

https://anonscm.debian.org/cgit/pkg-perl/packages/libgtk2-unique-perl.git/tr...

Reference https://bugs.launchpad.net/shutter/+bug/731874

Bugreport for Shutter component with details:
https://bugzilla.redhat.com/show_bug.cgi?id=1537008