MacBookPro9,1, El Capitan
Tested with 1.9.4.2, also affects current betas of APu and APh.
ADe/APu/APh 1.9.3 are not affected.
Cropping a container like group, layer etc. with another vector object rasterizes vector content of the container on export to a format like PDF. That affects newly created content as well as e.g. opened or placed PDFs which are usually cropped by a page box: all content of the page box will be also rasterized on export. In case of an opened and thus interpreted PDF, the bug can be worked around by deleting the cropping page box; just disabling the crop object is not enough, it must be removed from its nested layer stack position.
Also affects the Vector Crop tool.
Steps to reproduce:
create one or more vector objects
group them, or place them in a layer
crop the group/layer with another vector object or the Vector Crop tool
Cropping a single vector object doesn't rasterize it.
Watch the video, first part is from 1.9.4.2, second part from 1.9.3:
ade_crop_container_rasterize_bug.mp4