Bug: Connecting Objects through Classes doesn't render connection arrow.

[UliAbo]

Describe the bug
Connecting Objects through Classes doesn't render connection arrow.

To Reproduce

1. Create Class with Property with "Object" as variable type.
2. Assign Object with Class.
3. Connect Object through Class property with other Object.
4. As far as I see this, it works technically, but not visually.

Expected behavior
Connection arrow is shown like usual (double-checked, this already works for me with not using Classes).

Media
Missing arrow:

Specifications:

• Win10 64bit
• Tiled Version: v1.82

[bjorn]

Thanks for opening an issue about it! I had this on my mind while adding support for custom classes, but forgot about it in the end. Fixed for Tiled 1.8.3.