X out of the 'user argument' window causes error with some commands

This bug happens with commands that require input from the user, commands with a value in the middle column.

When you click run a dialog opens to ask what you want to replace the ? with. On some commands, when you click the X button to close the window it causes an error that persists till you close the app.

To Reproduce.
Select the command: grep -i -R -l ? ?
Click 'Run'
When the dialog pops up asking for the 'string, path/to/*' click the X button to close the dialog
Now try and run any other command. It will not run.

This is the error when closing the dialog:

Traceback (most recent call last):
  File "/home/duanedesign/clicompanion/fix-684336/clicompanionlib/controller.py", line 384, in run_command
    c = new_cmnd.format(text)
IndexError: list index out of range

Every row you select after this throws this error:

/home/duanedesign/clicompanion/fix-684336/clicompanionlib/view.py:227: GtkWarning: IA__gtk_tree_selection_get_selected_rows: assertion `GTK_IS_TREE_SELECTION (selection)' failed
  (model, pathlist)=treeselection.get_selected_rows()

Then when you try and run another command, this error

Traceback (most recent call last):
  File "/home/duanedesign/clicompanion/fix-684336/clicompanionlib/controller.py", line 357, in run_command
    row_int = int(view.ROW[0][0]) ## removes everything but number from [5,]
IndexError: list index out of range