Using project.search in Conduit to search for a milestone project, the color values returned are always default blue as a milestone itself cannot have a custom color on its own.
This is inconsistent as the UI uses the color of the milestone's parent project, for example under "Looks like" on /project/manage/2/ and under "Tags" on /T1.

Closes T16088

1. Go to http://phorge.localhost/project/edit/form/default/
2. Set "Color" to "Pink"
3. Click "Create New Project"
4. Click "Subprojects" in the left panel on resulting http://phorge.localhost/project/subprojects/1/
5. Click "Create Milestone" in the right panel
6. On the "Create Project" page, see that you cannot choose an icon or color.
7. Enter a "Name" and click "Create New Project"
8. On resulting http://phorge.localhost/project/view/2/, see that the milestone tag under "Looks Like" is also Pink like the parent project
9. Go to http://phorge.localhost/conduit/method/project.search/
10. In the "constraints" field, enter {"ids": [2]}
11. Check the color output under "Method Result"