Tip continues moving when body reaches the boundary edge, when controlled with keyboard.

[samreid]

Discovered in phetsims/my-solar-system#86 and related to #798, when focusing the measuring tape body and moving it with the arrow keys, when it hits the bounds, the body stops moving but the tip continues moving. This was surprising behavior.

[zepumph]

Today, designers @arouinfar @DianaTavares @zepumph @AgustinVallejo decided this should be investigated briefly, but a complex solution does now block My Solar System publication.

[zepumph]

I have not had time to investigate this. Perhaps someone from the My Solar System team will want to do a bit of investigation before publication.

[AgustinVallejo]

In todays standup: We consider this to be, first, something that can be fixed in a maintenance release of common code. And second, the alt input scope and expectations for MSS are pretty low, just seeing what we can implement easily for the first release. So we won't work on this.