BUG! Ability to alter unlocked diagrams

[GD_Monkey]

On our interaction (sequence) diagrams we are able to move arrows around when no lock has been applied to the diagram.

Creating new messages and dragging existing elements around has no effect on the unlocked diagram (as expected ) but try shift-clicking on the message arrows and it is possible to reassign the message source and target to different object lifelines. Most unexpected and a little scary...  

[AshK]

Please find that this has been corrected in our next build.

Ash

[GD_Monkey]

Faster than a - an err, well FAST that's all I can say!