Summary
pipes and pumps now have a new undocumented property initial_quality

This was not the case in 1.2.0

I think this is an error (or if not then it is missing documentation).

Example

wn = wntr.network.WaterNetworkModel()
wn.add_junction('1')
wn.add_junction('2')
wn.add_pipe('p1','1','2')
hasattr(wn.links['p1'],"initial_quality")

Environment
Provide information on your computing environment.

• WNTR version: 1.3.2