Running bb theme-build with the --target or -t option from an ancestral folder does not include assets

[iterox]

In the CXP 5.6 project setup for Aldemore running bb theme-build -t collection-aldermore/theme-asset-finance from within the ancestral folder statics/collection does not include fots and media folders in the dist-folder, only styles-folder with css are present.

[santam85]

Duplicate of #141