Popop overflow can be on top when popup direction is `UI_DIR_UP`, so this can require a negative scroll. Pull Request: https://projects.blender.org/blender/blender/pulls/127021
Popop overflow can be on top when popup direction is `UI_DIR_UP`, so this can require a negative scroll. Pull Request: https://projects.blender.org/blender/blender/pulls/127021