Scribble is altered by Zone tool

[Romuald]

Expected Behavior

Don't alter fill and stroke properties when adding a zone.

Actual Behavior

When you add a zone to a space fill and stroke properties are updated in a way that adding a scribble after will draw an invisible scribble.

Possible Solution

Restore default values for fill and stroke.

Steps to Reproduce the Problem

1. Create a new space
2. Add a scribble
3. Add a zone
4. Unselect zone tool
5. Scribble tool is selected, draw a scribble
6. Scribble is not visible

Specifications

• OS Platform and Distribution (e.g., Linux Ubuntu 16.04): docker-compose project configuration
• Node version: 14.14.7
• Database engine (e.g., SQLite): sqllite3-4.2.0