BUG? Timeline resets on switching clips

[craftycurate]

I have a layer whose Scale moves between 100 and 120% using a Timeline with a back and forward motion. The clips are all still images.

When I select a new clip on the layer, the current timeline value resets instantly to the lower bound if the value is increasing, and to the upper bound if the value is decreasing, causing a jump in the visual.

There is an Alpha transition on the layer, though the effect is still observed without it. If a transition is active, the jump happens before the transition begins.

I'd like the timeline to retain its value when launching a new clip.

4.1.3 on Win7x64.