Map.removeLayer() removes all layers

Summary

As the title says.

Steps to reproduce

1. Add many layers on a map
2. Remove only one of those layers

Expected behaviour:

Only the removed layer is actually removed.

Actual behaviour:

All layers in the map are removed.

Informations

• Giro3D version: 0.34.2
• Browser (Firefox, Chrome, Opera, Safari...) and version: N/A
• OS (Linux, MacOS, Windows...) N/A