Ensure positive length whan drag-adding new midi region.
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@ -518,7 +518,7 @@ Drag::add_midi_region (MidiTimeAxisView* view, bool commit, const int32_t sub_nu
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/* not that the frame rate used here can be affected by pull up/down which
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might be wrong.
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*/
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framecnt_t len = map.frame_at_beat (map.beat_at_frame (pos) + 1.0) - pos;
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framecnt_t len = map.frame_at_beat (max (0.0, map.beat_at_frame (pos)) + 1.0) - pos;
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return view->add_region (grab_frame(), len, commit, sub_num);
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}
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