Use case or problem
Depending on the zoom level you can accidentally click the edge of a node an resize it rather than move it. When you have OCD and do not notice you did this immediately it turns into a mad session of resizing nodes to be similar.
Proposed solution
Add a right click->Lock Dimensions, option for all types of nodes on a canvas.
Current workaround (optional)
Pay careful attention and hit ctrl-z when you do this.