fairmotion/tasks/motion_graph/motion_graph.py [281:289]:
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                if self.motions[motion_idx] is None:
                    self.load_motion_at_idx(
                        motion_idx, self.motion_files[motion_idx]
                    )
                m = motion_ops.cut(
                    self.motions[motion_idx],
                    frame_start,
                    frame_end + self.frames_blend,
                )
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fairmotion/tasks/motion_graph/motion_graph.py [392:405]:
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            if self.motions[motion_idx] is None:
                self.load_motion_at_idx(
                    motion_idx, self.motion_files[motion_idx]
                )

            """
            We should detach with the extra (frames_blend)
            because motion.append affects the end of current motion
            """
            m = motion_ops.cut(
                self.motions[motion_idx],
                frame_start,
                frame_end + self.frames_blend,
            )
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