"Remove debris" tool doesn't remove trees.

Issue description

"Remove debris" tool doesn't remove trees, but removes bushes.

Reproduction steps

1. Select "Remove debris" tool
2. Select area
3. see that bushes have been selected for removal, but trees are not selected.

Game version and build number

v0.7.9 (b495)

Operating system

Windows

This isn't a bug.

The remove debris tool is not meant to remove trees, so it skipping them works as designed, as noted in this thread.