Impress: Shape moved out of slide partially visible

[hfiguiere]

Describe the Bug

Move a shape out of the slide boundaries. It will be partially shown.

Steps to Reproduce

1. Insert a shape. Or a chart in an Impress slide
2. Move the shape outside of the slide
3. The shape might be partially visible

Expected Behavior

It should be fully visible

Actual Behavior

Instead it's only partially visible. Tied to the tiles sent.

Screenshots

Desktop

(Please complete the following information)

• Collabora version: master
• OS and version: Linux
• Browser and version: Firefox

Additional Context

This is exactly why PR #8165 was still in Draft.

[thebearon]

Mentioning a similar issue that was reported back in the LibreOffice Online days in TDF BZ:
https://bugs.documentfoundation.org/show_bug.cgi?id=127480