When deleting a contingency, the selected item in the panel is also prompted for deletion

[jonenst]

• Do you want to request a feature or report a bug?
  Bug

• What is the current behavior?
  When selecting a contingency and pressing the Del key, the contingency is prompted for deletion, and then another prompt is show to delete the item that is selected in the left pane in the project file explorer. If instead you use the trash icon it works correctly.

• If the current behavior is a bug, please provide the steps to reproduce and if possible a minimal demo of the problem
  open the contingencies list, select something on the project explorer tab (by default the contingency list is already selected so this can be skipped), select a contingency and press the del key on the keyboard.

• What is the expected behavior?
  No second prompt, like when clicking the trash icon

• Please tell us about your environment:

  • PowSyBl Version: 2.5
  • OS Version: linux