Slur position not the same in the parts

Not sure if this is a bug, or if this is correct, but when using a slur that I adjusted in the properties panel, this setting is not repeated in all the different parts for that same instrument:
Screen Shot 2017-08-03 at 14.52.17.png
Screen Shot 2017-08-03 at 14.52.29.png

This is most certainly by design… but it can be both a blessing and a curse… depending on the situation… some way to initially inherit score edits in parts would be useful.