d411be8a99
Add `contains_group` method in python api for `NodeTree` type, cleanup `ntreeHasTree` function, reuse `ntreeHasTree` in more place in code. The algorithm has been changed to not recheck trees by using set. Performance gains from avoiding already checked node trees: Based on tests, can say that for large files with a huge number of trees, the response speed of opening the search menu in the node editor increased by ~200 times (for really large projects with 16 individual groups in 6 levels of nesting). Group insert operations are also accelerated, but this is different in some cases. Pull Request #104465
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