Blender Git Loki

Fix T69246: Outliner - Objects Filter Selected, Hidden and Active not
working properly

'outliner_extract_children_from_subtree()' (introduced in
rB40a1c671655c) was extracting the children of non-matching parents
regardless of their own matching state.

Now properly filter the subtree prior to extracting.

Maniphest Tasks: T69246

Differential Revision: https://developer.blender.org/D6517