Make it impossible to have multiple keyframes on the same frame in the sequencer

It’s possible to have multiple keyframes on the same track share the same frame in the sequencer timeline. This creates some unexpected situations that can only be fixed by going into the graph editor and finding and deleting the duplicate keyframe.

For example when dragging a keyframe onto another, most other animation software will replace the existing keyframe with the new one. But in UE, both keyframes now exist on the same frame, conflicting with each other.

I’d like to request that when you drag a keyframe onto another keyframe, the new keyframe replaces the old. There might be other situations that create these twin keyframes as well, this feedback goes for those as well.