Description of problem:
I was installing "texlive-formation-latex-ul" on this fc30 x86_64 system.

Version-Release number of selected component:
dnfdragora-1.0.1-12.git20180108.b0e8a66.fc29

Additional info:
reporter:       libreport-2.9.5
cmdline:        /usr/bin/python3 /bin/dnfdragora
crash_function: on_RPMProgress
exception_type: KeyError
executable:     /bin/dnfdragora
interpreter:    python3-3.7.0-10.fc30.x86_64
kernel:         4.19.0-0.rc6.git4.1.fc30.x86_64
runlevel:       N 3
type:           Python3
uid:            0

Truncated backtrace:
dnf_backend.py:223:on_RPMProgress:KeyError: 'obsoleted'

Traceback (most recent call last):
  File "/usr/lib/python3.7/site-packages/dnfdaemon/client/__init__.py", line 187, in __call__
    return getattr(self.proxy, self.method)(*args)
  File "/usr/lib/python3.7/site-packages/dnfdaemon/client/__init__.py", line 228, in _on_g_signal
    self.handle_dbus_signals(proxy, sender, signal, args)
  File "/usr/lib/python3.7/site-packages/dnfdaemon/client/__init__.py", line 556, in handle_dbus_signals
    self.on_RPMProgress(*args)
  File "/usr/lib/python3.7/site-packages/dnfdragora/dnf_backend.py", line 223, in on_RPMProgress
    self.frontend.infobar.info_sub(const.RPM_ACTIONS[action] % name)
KeyError: 'obsoleted'

Local variables in innermost frame:
self: <dnfdragora.dnf_backend.DnfRootBackend object at 0x7f724cd7acc0>
package: 'python2-prompt_toolkit,0,1.0.15,2.fc30,noarch,@System'
action: 'obsoleted'
te_current: 0
te_total: 332
ts_current: 2
ts_total: 2
num: ' ( 2/2 )'
name: 'python2-prompt_toolkit-1.0.15-2.fc30.noarch'