Description of problem:
Tried to produce a playlist from the playlist dialog
The following error messages were produced but the WARNINGS and CRITICAL messages were produced at startup

(easytag:19918): GLib-GObject-WARNING **: The property GtkWidget:margin-left is deprecated and shouldn't be used anymore. It will be removed in a future version.

(easytag:19918): GLib-GObject-WARNING **: The property GtkWidget:margin-right is deprecated and shouldn't be used anymore. It will be removed in a future version.

(easytag:19918): GLib-GIO-CRITICAL **: g_settings_get_flags() called on key 'rename-convert-spaces' which is not associated with a flags type
**
ERROR:src/playlist_dialog.c:482:write_button_clicked: code should not be reached


Version-Release number of selected component:
easytag-2.4.0-1.fc22

Additional info:
reporter:       libreport-2.6.0
backtrace_rating: 4
cmdline:        easytag
crash_function: write_button_clicked
executable:     /usr/bin/easytag
global_pid:     23968
kernel:         4.0.7-300.fc22.x86_64
runlevel:       N 5
type:           CCpp
uid:            1000

Truncated backtrace:
Thread no. 1 (10 frames)
 #4 write_button_clicked at src/playlist_dialog.c:482
 #5 on_response at src/playlist_dialog.c:582
 #6 g_cclosure_marshal_VOID__ENUMv at gmarshal.c:1496
 #7 _g_closure_invoke_va at gclosure.c:831
 #13 gtk_button_do_release at gtkbutton.c:1899
 #14 gtk_real_button_released at gtkbutton.c:2017
 #15 _g_closure_invoke_va at gclosure.c:831
 #18 multipress_released_cb at gtkbutton.c:613
 #19 ffi_call_unix64 at ../src/x86/unix64.S:76
 #20 ffi_call at ../src/x86/ffi64.c:525