Fix bug with picture preview not resetting

[Aveline-art]

Action Items

• [x] To reproduce:
  • [x] Select an existing project, and go to step four
  • [x] Go back to step 1 and select a different project
  • [x] Go to step four
  • [x] The pictures are from the first selected project
• [x] Redo the logic for photos such that they are reset when a different existing project is selected

[Aveline-art]

Closed because completed