Critical when trying to open a mount in a new window

Version information

cff7db0b compiled on Arch Linux

Steps to reproduce

  1. thunar computer://
  2. Right-click on File System and select "Open in 1 new Window" to trigger a critical

Current behavior 

thunar-CRITICAL **: thunar_action_manager_open_selected_folders: assertion 'thunar_file_is_directory (((((ThunarFile*) (void *) ((lp->data))))))' failed

Expected outcome

The mount opens in a new window

Backtrace 

#0  _g_log_abort (breakpoint=...) at ../glib/gmessages.c:455
#1  0x00007ffff61a04df in g_logv (log_domain=..., log_level=..., format=..., args=...) at ../glib/gmessages.c:1313
#2  0x00007ffff619facc in g_log (log_domain=..., log_level=..., format=...) at ../glib/gmessages.c:1355
#3  0x00007ffff619f34d in g_return_if_fail_warning (log_domain=..., pretty_function=..., expression=...) at ../glib/gmessages.c:3197
#4  0x000055555592e4d2 in thunar_action_manager_open_selected_folders (action_mgr=..., open_in_tabs=...) at ../thunar/thunar-action-manager.c:1442
#5  0x00005555559410e6 in thunar_action_manager_action_open_in_new_windows (action_mgr=...) at ../thunar/thunar-action-manager.c:1498
#6  0x00007ffff6513b7c in g_cclosure_marshal_VOID__VOID (closure=..., return_value=..., n_param_values=..., param_values=..., invocation_hint=..., marshal_data=...)
    at ../gobject/gmarshal.c:117
#7  0x00007ffff6508be3 in g_closure_invoke (closure=..., return_value=..., n_param_values=..., param_values=..., invocation_hint=...) at ../gobject/gclosure.c:916
#8  0x00007ffff657b3ee in signal_emit_unlocked_R (node=..., detail=..., instance=..., emission_return=..., instance_and_params=...) at ../gobject/gsignal.c:3929
#9  0x00007ffff6576d63 in signal_emit_valist_unlocked (instance=..., signal_id=..., detail=..., var_args=...) at ../gobject/gsignal.c:3561
#10 0x00007ffff65781b1 in g_signal_emit_valist (instance=..., signal_id=..., detail=..., var_args=...) at ../gobject/gsignal.c:3304
#11 g_signal_emit (instance=..., signal_id=..., detail=...) at ../gobject/gsignal.c:3624
#12 0x00007ffff591aba4 in gtk_widget_activate (widget=...) at ../gtk/gtkwidget.c:7860
#13 0x00007ffff56436b0 in gtk_menu_shell_activate_item (menu_shell=..., menu_item=..., force_deactivate=...) at ../gtk/gtkmenushell.c:1375
#14 0x00007ffff5646708 in gtk_menu_shell_button_release (widget=..., event=...) at ../gtk/gtkmenushell.c:791
#15 0x00007ffff562a290 in gtk_menu_button_release (widget=..., event=...) at ../gtk/gtkmenu.c:3995
[...snip...]

Additional information

N/A