Description of problem:
I was trying to install some codecs to improve the support for Firefox. After selecting some packages, the application crashed after starting the installation process of the packages.

Version-Release number of selected component:
dnfdragora-1.0.1-6.git20170505.2a3b056.fc27

Additional info:
reporter:       libreport-2.9.3
cmdline:        /usr/bin/python3 /usr/bin/dnfdragora
crash_function: __call__
exception_type: RecursionError
executable:     /usr/bin/dnfdragora
kernel:         4.14.8-300.fc27.x86_64
runlevel:       N 5
type:           Python3
uid:            1000

Truncated backtrace:
__init__.py:187:__call__:RecursionError: maximum recursion depth exceeded while calling a Python object

Traceback (most recent call last):
  File "/usr/lib/python3.6/site-packages/dnfdaemon/client/__init__.py", line 187, in __call__
    return getattr(self.proxy, self.method)(*args)
RecursionError: maximum recursion depth exceeded while calling a Python object

Local variables in innermost frame:
args: (<Gio.DBusProxy object at 0x7f3a53ddb1f8 (GDBusProxy at 0x5565754e4680)>, ':1.64', 'DownloadProgress', GLib.Variant('(sddi)', ('fluid-soundfont-gm-3.1-17.fc27.noarch.rpm', 0.85255109874669477, 0.86001638572764039, 22)))
self: <dnfdaemon.client.WeakMethod object at 0x7f3a53dc1e48>

This is a private, duplicate bug report of bug 1463906. The report has been created because Bugzilla cannot grant access to a comment for a specific group.