Fixes Yeesha Page 8 issues

[Hazado]

This fixes the issues noted in #1274

Relto Pages in the rainy cleft before would sometimes have the holographic page show instead of the correct solid background.
It could also show the previous symbol used in addition to the holographic page.

This code in my testing fixed the issues.

[Hoikas]

This looks correct to me. Did you verify that the other Yeesha pages still work as expected after clicking on the holographic page?

[Hazado]

This looks correct to me. Did you verify that the other Yeesha pages still work as expected after clicking on the holographic page?

Yes, pages worked as they should.

Relevant Log:

(12/15 18:20:58) DEBUG: clftYeeshaPage08.OnGUINotify(): Picked up page
(12/15 18:20:58) DEBUG: clftYeeshaPage08.py: The previous value of the SDL variable YeeshaPage8 is 2
(12/15 18:20:58) DEBUG: clftYeeshaPage08.py: You've already found Yeesha Page #8. Move along. Move along.
(12/15 18:20:58) DEBUG: clftYeeshaPage08.py: You've already found Yeesha Page #8. Move along. Move along.
(12/15 18:21:07) xYeeshaPages.OnGUINotify(): Picked up page number: 28
(12/15 18:21:07) xYeeshaPages.py: The previous value of the SDL variable YeeshaPage28 is 1
(12/15 18:21:07) xYeeshaPages.py: You've already found Yeesha Page #28. Move along. Move along.
(12/15 18:21:16) clftYeeshaPageImager.OnNotify()
(12/15 18:21:16) ImagerUsable: 1
(12/15 18:21:18) DEBUG: clftYeeshaPage08.OnGUINotify(): Picked up page
(12/15 18:21:18) DEBUG: clftYeeshaPage08.py: The previous value of the SDL variable YeeshaPage8 is 2
(12/15 18:21:18) DEBUG: clftYeeshaPage08.py: You've already found Yeesha Page #8. Move along. Move along.
(12/15 18:21:18) DEBUG: clftYeeshaPage08.py: You've already found Yeesha Page #8. Move along. Move along.
(12/15 18:21:27) xYeeshaPages.OnGUINotify(): Picked up page number: 28
(12/15 18:21:27) xYeeshaPages.py: The previous value of the SDL variable YeeshaPage28 is 1
(12/15 18:21:27) xYeeshaPages.py: You've already found Yeesha Page #28. Move along. Move along.